4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt

4-[2-[7-[(5-羧基戊基)乙基氨基]-2-氧代-2H-1-苯并吡喃-3-基]乙烯基]-3-磺基-1-(3-磺基丙基)吡啶内盐钠盐

Also known as: DY 521

4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt (CAS 1071838-34-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C27H31N2O10S2Na and a molecular weight of 632.689 g/mol. It is also known as DY 521. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1071838-34-0
Jingsj CID
J-962864-5
Molecular Formula
C27H31N2O10S2Na
Chinese Name
4-[2-[7-[(5-羧基戊基)乙基氨基]-2-氧代-2H-1-苯并吡喃-3-基]乙烯基]-3-磺基-1-(3-磺基丙基)吡啶内盐钠盐
Molecular Weight
632.689 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt?

The CAS number of 4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt is 1071838-34-0.

What are the molecular formula and molecular weight of 4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt?

4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt has molecular formula C27H31N2O10S2Na and molecular weight 632.689 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-[2-[7-[(5-Carboxypentyl)ethylamino]-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-3-sulfo-1-(3-sulfopropyl)pyridinium inner salt sodium salt (CAS 1071838-34-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-962864-5 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.