HC YELLOW NO. 7

CAS No.：104226-21-3

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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HC YELLOW NO. 7 Basic information

Product Name:	HC YELLOW NO. 7
Synonyms:	HC YELLOW NO. 7;2-[[4-(4-Aminophenyl)azo-3-methylphenyl]-(2-hydroxyethyl)amino]ethanol;HC Yellow 7;Ethanol,2,2'-[[4-[2-(4-aminophenyl)diazenyl]-3-methylphenyl]imino]bis-;4,6-bis(ethylthio)-2-pyrimidinamine
CAS:	104226-21-3
MF:	C17H22N4O2
MW:	314.38
EINECS:
Product Categories:
Mol File:	104226-21-3.mol

HC YELLOW NO. 7 Chemical Properties

Melting point	149 °C
Boiling point	578.8±50.0 °C(Predicted)
density	1.20±0.1 g/cm3(Predicted)
pka	14.27±0.10(Predicted)
CAS DataBase Reference	104226-21-3(CAS DataBase Reference)

Safety Information

MSDS Information

HC YELLOW NO. 7 Usage And Synthesis

Contact allergens

HC Yellow no. 7 is a direct azo dye used in semiper manent hair dye preparation. Since this dye leads to PPD after hydrolysis, it explains the allergic reaction in PPD-positive patients.

HC YELLOW NO. 7 Preparation Products And Raw materials

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