Dyes and metabolites

Applications Isotope labelled 2-Toluidine (T536205) is a carcinogenic and toxic aromatic amine and is a potential bladder cancer risk, surmised from urine assessment and analysis (1). It is contained in hair dye, henna and dyed hair samples (2,3). Possible mutagen (4). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References 1. El-Bayoumy, K. et al.: Cancer Res. 1986 Dec;46(12 Pt 1):6064-7.2. Turesky R. et al.: Chem. Res. Toxicol. 2003 Sep;16(9):1162-73.3. Andrew, A. et al.: Int. J. Cancer. 2004 Apr 20;109(4):581-6.4. Kirkland, D. et al.: Mutat. Res. 2005 Dec 30;588(2):88-105.

Stability Hygroscopic, Light Sensitive Applications Basic Blue 26 is a basic dye used in a variety of applications and industries, including the cosmetic industry where it is found in temporary hair dyes. Basic Blue 26 adsorbs well to activated carbon surfaces. References Williams, T. N.; et al.: ACS Sustainable Chem. Eng., 6, 2344 (2018); Vieira de Souza, T. N.; et al.: Appl. Surf. Sci., 448, 662 (2018).

Applications Fluorescent Brightener KSN (cas# 5242-49-9) is a useful research chemical.

Stability Light Sensitive Applications Acrylamide-d3 is deuterium labeled Acrylamide (A191300). Acrylamide is a chemical intermediate in production of polyacrylamides that are use in protein electrophoresis (PAGE), synthesis of dyes and copolymers for contact lenses. It is reasonably anticipated to be a human carcinogen (1,2). Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References (1) Mottram, D.S., et al.: Nature, 419, 448 (2002)(2) Tareke, E., et al.: J. Agric. Food Chem., 50, 4998 (2002)