Acid Yellow 219
酸性黄219
Also known as: C.I. Acid Yellow 219, Nylosan Yellow E-RM, Taigalan Yellow NWT, Triacid Fast Yellow 3RL, Chromalon Yellow 4R-KLW, Simacid Yellow 24891, Tectilon Yellow 4R, Sodium 3-[(E)-{3-methoxy-4-[(E)-(4-methoxyphenyl)diazenyl]phenyl}diazenyl]benzenesulfonate, Benzenesulfonic acid, 3-[(E)-2-[3-methoxy-4-[(E)-2-(4-methoxyphenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:1)
Acid Yellow 219 (CAS 71819-57-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H17N4NaO5S and a molecular weight of 448.427 g/mol. It is also known as C.I. Acid Yellow 219, Nylosan Yellow E-RM and Taigalan Yellow NWT. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 71819-57-3
- Jingsj CID
- J-929738-8
- Molecular Formula
- C20H17N4NaO5S
- Chinese Name
- 酸性黄219
- Molecular Weight
- 448.427 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of Acid Yellow 219?
The CAS number of Acid Yellow 219 is 71819-57-3.
What are the molecular formula and molecular weight of Acid Yellow 219?
Acid Yellow 219 has molecular formula C20H17N4NaO5S and molecular weight 448.427 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acid Yellow 219 (CAS 71819-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-929738-8 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.