
Hydrocarbon Building Blocks
Hydrocarbon building blocks are organic compounds consisting solely of carbon and hydrogen atoms. These fundamental structures serve as the basis for synthesizing a wide variety of complex molecules. Hydrocarbon building blocks are used in the development of pharmaceuticals, polymers, and other organic compounds. At CymitQuimica, we offer a broad range of high-quality hydrocarbon building blocks to facilitate your synthetic and research projects.
Subcategories of "Hydrocarbon Building Blocks"
Products of "Hydrocarbon Building Blocks"
Sort by
1-Bromo-2,3,4,5,6-pentamethylbenzene
CAS:Formula:C11H15BrPurity:97%Color and Shape:SolidMolecular weight:227.14082,6,10,14-Tetramethylhexadecane
CAS:Formula:C20H42Purity:>98%Color and Shape:LiquidMolecular weight:282.552-[2-(2-Propyn-1-yloxy)ethoxy]acetic acid
CAS:Purity:95%Color and Shape:LiquidMolecular weight:158.15299987792976-Methylheptanol
CAS:6-Methylheptanol is a chemical compound that belongs to the group of imidazole hydrochlorides. It is used as a catalyst for the treatment of wastewater. 6-Methylheptanol has been shown to catalyze the reaction of malonic acid with glycol ethers and hydroxyl groups in water, which produces high values of phosphorus pentoxide. The kinetic data and reaction mechanism for this process have been elucidated by using a model system and reaction solution. 6-Methylheptanol also has an effect on polymerase chain reactions (PCR) due to its ability to increase the temperature at which the enzyme works.Formula:C8H18OPurity:Min. 97 Area-%Color and Shape:Colorless Clear LiquidMolecular weight:130.23 g/mol1,4-Diiodo-2,5-dimethylbenzene
CAS:Formula:C8H8I2Purity:>98.0%(GC)Color and Shape:White to Almost white powder to crystalMolecular weight:357.96DIBENZYL ETHYNYLPHOSPHONATE
CAS:Purity:95.0%Color and Shape:Liquid, OilMolecular weight:286.26699829101562-(Chloromethyl)-N,N-diethyl-1,4-dihydro-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxamide
CAS:Purity:97%Molecular weight:313.8Benzene, 5-bromo-1,3-difluoro-2-iodo-
CAS:Formula:C6H2BrF2IPurity:98%Color and Shape:SolidMolecular weight:318.8854N-Ethynyl-N,4-dimethylbenzenesulfonamide
CAS:Purity:97%Color and Shape:SolidMolecular weight:209.259994506835941,3-Dichloro-5-fluorobenzene
CAS:Formula:C6H3Cl2FPurity:>98.0%(GC)Color and Shape:Colorless to Light orange to Yellow clear liquidMolecular weight:164.991-Propanol, 3-(dibutylamino)-
CAS:Formula:C11H25NOPurity:97%Color and Shape:LiquidMolecular weight:187.32233-((3R,4S)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanenitrile ,rel
Purity:97%Molecular weight:624.7541,3-Dichloro-2-butene (cis- and trans- mixture)
CAS:Formula:C4H6Cl2Purity:>95.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:124.991-Bromopropane
CAS:Formula:C3H7BrPurity:>98.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:122.994,4-Dimethyl-3-thiosemicarbazide
CAS:Formula:C3H9N3SPurity:98%Color and Shape:SolidMolecular weight:119.18871-Ethynyl-3,3-difluoro-cyclobutanamine;hydrochloride
CAS:Purity:98%Molecular weight:167.58000183105474-Fluorophenylacetylene
CAS:Purity:99.0%Color and Shape:Solid, Low Melting SolidMolecular weight:120.1259994506836Pyrene, 4-bromo-1,2,3,6,7,8-hexahydro-
CAS:Formula:C16H15BrPurity:96%Color and Shape:SolidMolecular weight:287.1943[S(R)]-N-[(R)-[2-(Diphenylphosphino)phenyl](4-methoxyphenyl)methyl]-2-methyl-2-propanesulfinamide
CAS:Purity:95%Molecular weight:501.624-Pentynyl methanesulfonate
CAS:Purity:95.0%Color and Shape:Liquid, OilMolecular weight:162.19999694824221-Bromodecane
CAS:Formula:C10H21BrPurity:>98.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:221.181-Ethynyl-4-nitrobenzene
CAS:Purity:95.0%Color and Shape:Solid, Orange powderMolecular weight:147.132995605468753,7-Dimethyloct-6-en-1-yn-3-ol
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:152.23699951171875Carbamic acid, [(1S)-1-(aminomethyl)propyl]-, 1,1-dimethylethyl ester (9CI)
CAS:Formula:C9H20N2O2Purity:97%Molecular weight:188.26732-(((1S,2R,4S)-2-((tert-Butoxycarbonyl)amino)-4-(dimethylcarbamoyl)cyclohexyl)amino)-2-oxoacetic acid (Edoxaban Impurity)
Purity:97%Molecular weight:357.407Allyl Iodide (stabilized with Copper chip)
CAS:Formula:C3H5IPurity:>98.0%(GC)Color and Shape:Light yellow to Brown clear liquidMolecular weight:167.98(1R,2R)-1,2-Diphenyl-1,2-ethanediamine
CAS:Chiral auxiliary; ligand frequently employed in asymmetric catalystsFormula:C14H16N2Purity:Min. 95%Color and Shape:PowderMolecular weight:212.29 g/molRef: 3D-FD22490
Discontinued productDichloroacetamide
CAS:Formula:C2H3Cl2NOPurity:97%Color and Shape:SolidMolecular weight:127.95732000000001Trifluoromethanesulfonic acid
CAS:Trifluoromethanesulfonic acid is a strong oxidizing agent that is used as a catalyst for the synthesis of organic compounds. It is an excellent solvent for many types of reactions and has been shown to be an effective catalyst for the synthesis of triflate, which can be used in cationic polymerization. Trifluoromethanesulfonic acid also has potential applications in carbohydrate chemistry and asymmetric synthesis, due to its ability to reduce carboxylic acids and nitriles. Trifluoromethanesulfonic acid can be synthesized by reacting potassium hexafluorophosphate with amines or nitrogen atoms under activated conditions.Formula:CHF3O3SPurity:Min. 95%Color and Shape:Clear LiquidMolecular weight:150.08 g/molTERT-BUTYL ETHYLCARBAMATE
CAS:Formula:C7H15NO2Purity:95%Color and Shape:SolidMolecular weight:145.19953-Butynyl p-toluenesulphonate
CAS:Purity:98.0%Color and Shape:LiquidMolecular weight:224.27000427246094(R)-5-Amino-2-(((benzyloxy)carbonyl)(trityl)amino)-5-oxopentanoic acid
CAS:Purity:97%Molecular weight:522.6012-Bromopropane
CAS:Formula:C3H7BrPurity:>99.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:122.991,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(1E)-1-penten-1-yl-
CAS:Formula:C11H21BO2Purity:98%Color and Shape:LiquidMolecular weight:196.0942Boc-L-Aspartic acid 1-tert-butyl ester
CAS:Formula:C13H23NO6Purity:97%Color and Shape:SolidMolecular weight:289.32482'-Iodo-m-terphenyl
CAS:Formula:C18H13IPurity:>98.0%(GC)Color and Shape:White to Orange to Green powder to crystalMolecular weight:356.214-Bromocumene
CAS:Formula:C9H11BrPurity:>97.0%(GC)Color and Shape:Colorless to Light yellow to Light orange clear liquidMolecular weight:199.09N-Methoxy-N-methylpropionamide
CAS:Formula:C5H11NO2Purity:97%Color and Shape:LiquidMolecular weight:117.14633-Chloro-2-methyl-1-propene (stabilized with Stearyl 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propionate)
CAS:Formula:C4H7ClPurity:>98.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:90.551-Bromo-3,5-dichlorobenzene
CAS:Formula:C6H3BrCl2Purity:>98.0%(GC)Color and Shape:White to Light orange to Yellow powder to crystalMolecular weight:225.892-(PENT-4-YNYL)ISOINDOLINE-1,3-DIONE
CAS:Purity:95.0%Color and Shape:Liquid, No data available.Molecular weight:213.23599243164062(R)-(+)-2-Methyl-2-Propanesulfinamide
CAS:Formula:C4H11NOSPurity:98%Color and Shape:SolidMolecular weight:121.20128-oxa-5-azaspiro[3.5]nonane
CAS:8-oxa-5-azaspiro[3.5]nonane is a high quality, non-toxic reagent with many uses as a building block for the synthesis of complex compounds. It can be used as an intermediate in the synthesis of fine chemicals, such as pharmaceuticals and agrochemicals, or as a building block for the synthesis of other chemical compounds. CAS No. 602326-48-7 is a versatile building block that can be used to synthesize molecules for research purposes. This compound has been shown to be useful in organic synthesis because it reacts easily with different functional groups.Formula:C7H13NOPurity:Min. 95%Color and Shape:PowderMolecular weight:127.18 g/mol4-(DIETHYLAMINO)BUT-2-YN-1-OL
CAS:Purity:95.0%Color and Shape:LiquidMolecular weight:141.214004516601562,7,12,17-tetrakis(4-ethynylphenyl)-21,22,23,24-tetraazapentacyclo[16.2.1.1³,⁶.1⁸,¹¹.1¹³,¹⁶]tetracosa-1,3,5,7,9,11,13(22),14,16,18(21),19-undecaene
CAS:Purity:98%Molecular weight:710.840026855469Cyclopentane, iodo-
CAS:Formula:C5H9IPurity:98%Color and Shape:LiquidMolecular weight:196.02943000000008N,4-dimethyl-N-((trimethylsilyl)ethynyl)benzenesulfonamide
CAS:Purity:98%Molecular weight:281.450012207031251-Fluoro-4-(2-bromoethyl)benzene
CAS:Formula:C8H8BrFPurity:97%Color and Shape:LiquidMolecular weight:203.0515Cyclopentane, 97%, extra pure
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Formula:C5H10Purity:97%Color and Shape:Clear colorless, LiquidMolecular weight:70.14N-Ethyl-(2-methylallyl)amine
CAS:Formula:C6H13NPurity:98%Color and Shape:Colorless To Light Yellow LiquidMolecular weight:99.172-Chloropropane
CAS:Formula:C3H7ClPurity:>99.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:78.541,1,1,2-TETRACHLOROETHANE
CAS:Formula:C2H2Cl4Purity:99%Color and Shape:LiquidMolecular weight:167.849280000000022-Bromonaphthalene
CAS:Formula:C10H7BrPurity:>98.0%(GC)Color and Shape:White to Orange to Green powder to crystalMolecular weight:207.072-(1-Chloroethyl)-5,6,7,8-tetrahydro-7-methyl[1]benzothieno[2,3-d]pyrimidin-4(1H)-one
CAS:Purity:95%Molecular weight:282.793,6,9,12-Tetraoxapentadec-14-yn-1-yl 4-methylbenzenesulfonate
CAS:Purity:98%Molecular weight:386.4599914550781N-Methyl-N-prop-2-ynylamine
CAS:Purity:95.0%Color and Shape:Liquid, Colourless to pale yellow clear liquidMolecular weight:69.107002258300784-Isopropylbenzyl Chloride (contains ca. 10% o-form)
CAS:Formula:C10H13ClPurity:>85.0%(GC)Color and Shape:Colorless to Light yellow to Light orange clear liquidMolecular weight:168.662-Bromohexane (contains 3-Bromohexane) (stabilized with Copper chip)
CAS:Formula:C6H13BrPurity:>70.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:165.072,4-Dibromo-1-fluorobenzene
CAS:Formula:C6H3Br2FPurity:>97.0%(GC)Color and Shape:Colorless to Light yellow to Red clear liquidMolecular weight:253.903-Bromo-1-(trimethylsilyl)-1-propyne
CAS:S03140 - 3-Bromo-1-(trimethylsilyl)-1-propyneFormula:C6H11BrSiPurity:95%Color and Shape:LiquidMolecular weight:191.143005371093755,6-dimethyl-2-(2-propyn-1-ylthio)thieno[2,3-d]pyrimidin-4-amine
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:249.350006103515624-(Bromomethyl)-1,2-difluorobenzene
CAS:Formula:C7H5BrF2Purity:96%Color and Shape:LiquidMolecular weight:207.01542-Bromo-4-chlorotoluene
CAS:Formula:C7H6BrClPurity:>98.0%(GC)Color and Shape:Colorless to Light yellow to Light orange clear liquidMolecular weight:205.486-Azido-hexan-1-ol
CAS:6-Azido-hexan-1-ol is an organic compound with the chemical formula CH3CH2OCH2CH2N3. It is a colorless liquid that boils at 29°C and has a melting point of -60°C. 6-Azido-hexan-1-ol has been shown to be a reactive site in polymerization kinetics, with a kinetic rate constant of 2.0x10^5 M^(-1)s^(-1). This compound also exhibits high reactivity when used as a substrate for ring opening polymerization, which may be due to its hydroxy group and functional groups. 6-Azido-hexan-1-ol can be synthesized by reacting 4 vinylbenzyl alcohol with hydrazine hydrate in the presence of an acid catalyst, such as sulfuric acid or pyridine. The reaction can be monitored using matrix assisted laser desorption ionization time of flight (MALDIFormula:C6H13N3OPurity:Min. 95%Color and Shape:Clear LiquidMolecular weight:143.19 g/mol2-(4-Methoxyphenyl)ethanol
CAS:2-(4-Methoxyphenyl)ethanol is a chemical compound that can be synthesized in an efficient method. It is a by-product of the reaction of fatty acids with hydroxyl compounds and has been shown to have synergistic effects when combined with chloride. 2-(4-Methoxyphenyl)ethanol is used as a synthetic intermediate for the production of methyl anthranilate, which is an important industrial chemical that is used as a flavor and fragrance additive. 2-(4-Methoxyphenyl)ethanol also has eugenol as one of its cleavage products, which can be found in plants such as clove oil, cinnamon bark, and nutmeg.Formula:C9H12O2Purity:Min. 98%Color and Shape:White PowderMolecular weight:152.19 g/mol1-Chloro-4-iodobutane (stabilized with Copper chip)
CAS:Formula:C4H8ClIPurity:>98.0%(GC)Color and Shape:Colorless to Light orange to Yellow clear liquidMolecular weight:218.461-Bromo-4-chloro-2-fluorobenzene
CAS:Formula:C6H3BrClFPurity:>98.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:209.449-Anthracenemethanol
CAS:9-Anthracenemethanol is a carcinogenic, mutagenic, and teratogenic compound. It is metabolized by a number of enzymatic reactions, including oxidation by cytochrome P450 enzymes and reduction by glutathione reductase. The compound has been shown to be activated in acid conditions, with an activation energy of 10 kcal/mol. It also forms an acid when heated, which can cause damage to cells. 9-Anthracenemethanol has been shown to have photochemical properties that may be used for the production of dyes or pigments.Formula:C15H12OPurity:Min. 95%Color and Shape:Yellow PowderMolecular weight:208.26 g/mol2-Chloroethyl Isocyanate
CAS:Formula:C3H4ClNOPurity:97%Color and Shape:LiquidMolecular weight:105.523POLY(ETHYLENE OXIDE) DIALLYL ETHER (20-30 EO)
CAS:Diallyl Terminated PEG (~1,000 g/mol) Diallyloxy PEGUnsaturated and polymerizable PEGylation reagentPEO, Diallyl termination utilized for protein modificationDual functional PEG forms protein-polymer hybridsPotential reagent drug and therapeutic deliveryColor and Shape:SolidMolecular weight:~10003-DIETHYLAMINOPROPYL CHLORIDE
CAS:Formula:C7H16ClNPurity:95%Color and Shape:LiquidMolecular weight:149.6616Tert-butyl ((2S,4S,5S)-5-amino-4-hydroxy-1,6-diphenylhexan-2-yl)carbamate hemisuccinate
CAS:Purity:98%Molecular weight:887.128Agaric acid
CAS:Agaric acid is a high-quality, versatile chemical that is used as an intermediate in many organic and biochemistry reactions. It is also used as a reagent for the isolation of metals such as silver and gold. As a complex compound, it has many uses, including being a useful building block in the synthesis of various drugs. Agaric acid can be used to produce other chemicals such as speciality chemicals or research chemicalsFormula:C22H40O7Molecular weight:416.56 g/molRef: 3D-A-3920
1gTo inquire5gTo inquire250mgTo inquire500mgTo inquire2500mgTo inquire-Unit-ggTo inquireHeptafluoropropyl Iodide (stabilized with Copper chip)
CAS:Formula:C3F7IPurity:>95.0%(GC)Color and Shape:Colorless to Light yellow to Light red clear liquidMolecular weight:295.931-Chloro-4-iodobenzene
CAS:Formula:C6H4ClIPurity:>99.0%(GC)Color and Shape:White to Yellow to Orange powder to crystalMolecular weight:238.45Methyl 3-hydroxy-4-((trimethylsilyl)ethynyl)benzoate
CAS:Purity:95.0%Molecular weight:248.352996826171881,1'-Biphenyl, 4-(chloromethyl)-
CAS:Formula:C13H11ClPurity:98%Color and Shape:SolidMolecular weight:202.67942-Bromo-5-fluorobenzyl Bromide
CAS:Formula:C7H5Br2FPurity:>98.0%(GC)Color and Shape:White to Almost white powder to lumpMolecular weight:267.92Methanesulfonic anhydride
CAS:Formula:C2H6O5S2Purity:98%Color and Shape:SolidMolecular weight:174.19603999999998Ref: IN-DA003RI1
5g25.00€1kg165.00€25g26.00€50g39.00€5kgTo inquire100g50.00€10kgTo inquire500g124.00€1-Bromo-3-chloro-2-iodobenzene
CAS:Formula:C6H3BrClIPurity:>97.0%(GC)Color and Shape:White to Yellow to Green powder to crystalMolecular weight:317.35n-Tridecane, 99+%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Formula:C13H28Purity:99+%Color and Shape:Liquid, Clear colorlessMolecular weight:184.37Triethyl 3-bromopropane-1,1,1-tricarboxylate
CAS:Triethyl 3-bromopropane-1,1,1-tricarboxylate (TRI) is a purine that is used as a supplement in the form of its salts. It has been found to be an active compound for the treatment of herpes simplex virus type 1 and 2 (HSV-1 and HSV-2). TRI inhibits viral replication by acting on the viral DNA polymerase and blocking the synthesis of DNA, which prevents viral replication. TRI also inhibits cellular protein synthesis through inhibition of ribonucleotide reductase and guanosine kinase. This compound can also be converted to famciclovir, which is currently FDA approved for the treatment of HSV infections. TRI can be synthesized using a catalytic process or a hydrogenolysis process. Catalytic processes are generally preferred because they are more economical than hydrogenolysis processes; however, both methods produce impurities that must be removed before the desired product can beFormula:C12H19BrO6Purity:Min. 80 Area-%Color and Shape:Clear LiquidMolecular weight:339.18 g/mol2-Adamantanol
CAS:2-Adamantanol is a biologically active compound that can be found in the form of an oily liquid. It has been shown to have effects on the central nervous system, including analgesia, sedation, and muscle relaxation. 2-Adamantanol is also used as a solvent for organic compounds and as a chemical intermediate. In addition to these properties, it can be found in some polyurethane foam insulation materials and in some rubber products. The mechanism of 2-adamantanol's biological activity is not well understood, but it may involve hydrogen bonding with hydroxyl groups on proteins or other molecules. There are many different ways to synthesize 2-adamantanol; however, one of the most commonly used synthesis methods is through reaction between 1-adamantanol and trifluoroacetic acid followed by hydrogenation with a metal catalyst. 2-Adamantanol has been observed to react with deuterium isotopes through transfer reactions during titrationFormula:C10H16OPurity:Min. 95%Color and Shape:White PowderMolecular weight:152.23 g/molCarbamic acid, (2-aminopropyl)-, 1,1-dimethylethyl ester (9CI)
CAS:Formula:C8H18N2O2Purity:97%Color and Shape:LiquidMolecular weight:174.24072Ref: 10-F471651
1g179.00€5g460.00€10g741.00€25gTo inquire100g4,762.00€100mg67.00€250mg92.00€500mg122.00€4-Bromo-2-chloro-1-iodobenzene
CAS:Formula:C6H3BrClIPurity:98%Color and Shape:SolidMolecular weight:317.34952,3,4-Trimethylpentane, 98+%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Formula:C8H18Purity:98+%Molecular weight:114.231,1,3-Trichloro-1-propene
CAS:Formula:C3H3Cl3Purity:>98.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:145.41(1-ethynylcyclopropyl)methanol
CAS:Purity:95.0%Color and Shape:Liquid, No data available.Molecular weight:96.128997802734383-Bromobenzyl Chloride
CAS:Formula:C7H6BrClPurity:>98.0%(GC)Color and Shape:White or Colorless to Light yellow powder to lump to clear liquidMolecular weight:205.481-Bromo-3,5-bis(trifluoromethyl)benzene
CAS:Formula:C8H3BrF6Purity:>98.0%(GC)Color and Shape:Colorless to Light yellow clear liquidMolecular weight:293.013,4-Dihydro-2H-pyran-2-methanol
CAS:3,4-Dihydro-2H-pyran-2-methanol is a tetrahydropyran alcohol that has been shown to be able to form cationic polymers in the presence of a ring-opening metathesis polymerization catalyst. The chloride anion is also capable of initiating the polymerization reaction. This compound has potential applications as a drug delivery agent or biomaterials scaffold due to its ability to act as a linker for the synthesis of biocompatible polymers. 3,4-Dihydro-2H-pyran-2-methanol can also be used in molecular modelling studies to explore the reactivity between hydroxy groups and nucleophiles.Formula:C6H10O2Purity:Min. 95%Color and Shape:Colorless PowderMolecular weight:114.14 g/mol7-Fluoro-8-((triisopropylsilyl)ethynyl)naphthalene-1,3-diol
CAS:Purity:98%Molecular weight:358.528015136718751-(Chloromethyl)-3-(trifluoromethyl)benzene
CAS:Formula:C8H6ClF3Purity:98%Color and Shape:LiquidMolecular weight:194.5814496N-tert-Butoxycarbonyl-1,6-hexanediamine
CAS:Formula:C11H24N2O2Purity:98%Color and Shape:LiquidMolecular weight:216.32054-Chloro-3-(trifluoromethyl)phenylacetylene
CAS:Color and Shape:SolidMolecular weight:204.5800018310547Pivalonitrile
CAS:Please enquire for more information about Pivalonitrile including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C5H9NMolecular weight:83.13 g/mol3,5-Dimethylhex-1-yn-3-ol
CAS:Purity:95.0%Color and Shape:Liquid, ClearMolecular weight:126.19899749755864-Chloro-1-fluoro-2-methylbenzene
CAS:Formula:C7H6ClFPurity:98%Color and Shape:LiquidMolecular weight:144.57394320000003