CAS Registry Number
CAS 1934-21-0 — Tartrazine
We list 2 grades / variants of this substance. Compare them below and add the right one to your quote basket.
CAS No.1934-21-0
FormulaC16H9N4Na3O9S2
Mol. weight534.40
Also known as: Yellow 5 · Food Yellow 4 · Aizen tartrazine · Tartraphenine · Tartran Yellow · Amacid Yellow T · Cilefa Yellow T · FD&C Yellow No. 5
IUPAC: trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
Available grades of CAS 1934-21-0
Need a price, a spec or a custom compound?
Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.