4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid
5-氨基-2-[2-[4-(4,5-二氢-3-甲基-5-氧代-1H-吡唑-1-基)-2-磺苯基]乙烯基]-苯磺酸
Also known as: 1-(4'-Amino-2,2'-disulfostilben-4-yl)-3-methyl-5(4H)-pyrazolone, 4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid, 5-Amino-2-{(E)-2-[4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-2-sulfophenyl]vinyl}benzenesulfonic acid, 5-amino-2-[2-[4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-2-sulfophenyl]ethenyl]benzenesulfonic acid, Benzenesulfonic acid, 5-amino-2-[(E)-2-[4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-2-sulfophenyl]ethenyl]-
4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid (CAS 119-74-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H17N3O7S2 and a molecular weight of 451.474 g/mol. It is also known as 1-(4'-Amino-2,2'-disulfostilben-4-yl)-3-methyl-5(4H)-pyrazolone, 5-Amino-2-{(E)-2-[4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-2-sulfophenyl]vinyl}benzenesulfonic acid and 5-amino-2-[2-[4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-2-sulfophenyl]ethenyl]benzenesulfonic acid. Key property: a density of 1.6±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 119-74-4
- Jingsj CID
- J-1939994-4
- Molecular Formula
- C18H17N3O7S2
- Chinese Name
- 5-氨基-2-[2-[4-(4,5-二氢-3-甲基-5-氧代-1H-吡唑-1-基)-2-磺苯基]乙烯基]-苯磺酸
- Molecular Weight
- 451.474 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.6±0.1 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of 4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid?
The CAS number of 4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid is 119-74-4.
What are the molecular formula and molecular weight of 4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid?
4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid has molecular formula C18H17N3O7S2 and molecular weight 451.474 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Amino-4'-(3-methyl-5-oxo-2-pyrazolin-1-yl)-2,2'-stilbenedisulfonic acid (CAS 119-74-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1939994-4 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.