4,4'-Azobis(4-cyanovaleric acid)
4,4'-偶氮双(4-氰基戊酸)
Also known as: 4,4'-Azobis(4-cyanopentanoic acid), ACPA, ABCPA, ABCVA, Azobis(4-cyanovaleric acid), 4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid), 4,4'-[(E)-1,2-Diazenediyl]bis(4-cyanopentanoic acid), Pentanoic acid, 4,4'-azobis[4-cyano-, Azocarboxy, NC 25
4,4'-Azobis(4-cyanovaleric acid) (CAS 2638-94-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H16N4O4 and a molecular weight of 280.280 g/mol. It is also known as 4,4'-Azobis(4-cyanopentanoic acid), ACPA and ABCPA. Key properties include a melting point of 118-125 °C (dec.)(lit.), a boiling point of 503.6±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 258.3±30.1 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2638-94-0
- Jingsj CID
- J-45033-5
- Molecular Formula
- C12H16N4O4
- Chinese Name
- 4,4'-偶氮双(4-氰基戊酸)
- Molecular Weight
- 280.280 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 118-125 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 503.6±50.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 258.3±30.1 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 4,4'-Azobis(4-cyanovaleric acid)?
The CAS number of 4,4'-Azobis(4-cyanovaleric acid) is 2638-94-0.
What are the molecular formula and molecular weight of 4,4'-Azobis(4-cyanovaleric acid)?
4,4'-Azobis(4-cyanovaleric acid) has molecular formula C12H16N4O4 and molecular weight 280.280 g/mol.
Is 4,4'-Azobis(4-cyanovaleric acid) hazardous?
4,4'-Azobis(4-cyanovaleric acid) has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-Azobis(4-cyanovaleric acid) (CAS 2638-94-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45033-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.