CheckVegan

Is HC Red No. 17 vegan?

HC Red No. 17

Vegan Vegan
Vegetarian Unconfirmed

HC Red No. 17 is a synthetic organic dye used in hair colouring products, chemically classified as a pyridinium-based cationic dye.

Also known as Di-[2-[(E)-2-[4-bis(2-hydroxyethyl)aminophenyl]vinyl]pyridin-1-ium]-butanoyl]aminoethyl]disulfanyl dichloride,Pyridinium, 1,1'-[dithiobis[2,1-ethanediylimino(4-oxo-4,1-butanediyl)]]bis[4-[(1E)-2-[4-[bis(2-hydroxyethyl)amino]phenyl]ethenyl]-, chloride (1:2), Di[2-[4-[(E)-2-[4-[bis(2-hydroxyethyl)aminophenyl]vinyl]pyridin-1-ium]butanoyl]aminoethyl]disulfanyl dichloride, HC RED NO 17, Pyridinium, 1,1'-[dithiobis[2,1-ethanediylimino(4-oxo-4,1-butanediyl)]]bis[4-[(1E)-2-[4-[bis(2-hydroxyethyl)amino]phenyl]ethenyl]-, chloride (1:2)
INCI name HC Red No. 17
CAS number 1449471-67-3
CosIng ID 91910
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.

Report an issue