C.I. 37545 is formerly known as Azoic dyes. it is impregnated cotton with an alkaline solution of β-naphthol, then treated it with a diazo solution obtained from aniline, a toluidine, xylidine, naphthylamine, aminoazobenzene or aminoazotoluene, so that particles of an azo pigment were formed and became firmly fixed within the fibre. Sensitisation to PPD on a henna tattoo with cross reaction to azoic dyes. may produce an increase in the frequency of contact dermatitis due to henna mixtures with cross- reaction to related compounds and possibly producing permanent skin changes. References: Oturkar CC, Patole MS, R Gawai K, Madamwar D. Enzyme based cleavage strategy of Bacillus lentus BI377 in response to metabolism of azoic recalcitrant. Bioresour Technol. 2013 Feb;130:360-5. doi: 10.1016/j.biortech.2012.12.019. Epub 2012 Dec 14. PubMed PMID: 23313681.

纯度：≥98%

CAS：92-73-9