Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt

2-[[1-[4-[2-[4-[[4-[[4-[(3-羧基-4-羟基苯基)偶氮]苯基]氨基]-1,4-二氧代-2-丁烯基]氨基]-2-磺苯基]乙烯基]-3-磺苯基]-4,5-二氢-3-甲基-5-氧代-1H-吡唑-4-基]偶氮]-5-[(甲氨基)磺酰]苯甲酸四钠盐

Also known as: Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt, EINECS 276-376-7

Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt (CAS 72139-20-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C43H31N9Na4O16S3 and a molecular weight of 1117.91000 g/mol. It is also known as EINECS 276-376-7. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
72139-20-9
Jingsj CID
J-1497385-7
Molecular Formula
C43H31N9Na4O16S3
Chinese Name
2-[[1-[4-[2-[4-[[4-[[4-[(3-羧基-4-羟基苯基)偶氮]苯基]氨基]-1,4-二氧代-2-丁烯基]氨基]-2-磺苯基]乙烯基]-3-磺苯基]-4,5-二氢-3-甲基-5-氧代-1H-吡唑-4-基]偶氮]-5-[(甲氨基)磺酰]苯甲酸四钠盐
Molecular Weight
1117.91000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt?

The CAS number of Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt is 72139-20-9.

What are the molecular formula and molecular weight of Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt?

Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt has molecular formula C43H31N9Na4O16S3 and molecular weight 1117.91000 g/mol.

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

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How to cite: Jingsj. "Benzoic acid, 2-[[1-[4-[2-[4-[[4-[[4-[(3-carboxy-4-hydroxyphenyl)azo]phenyl]amino]-1,4-dioxo-2-butenyl]amino]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-5-[(methylamino)sulfonyl]-, tetrasodium salt (CAS 72139-20-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497385-7 (accessed 2026-10-25).

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