Propyl Red
Also known as: 2-[4-(Dipropylamino)phenylazo]benzoic acid, 2-[(4-Dipropylamino)phenyl]azo-benzoic acid, 2-[[4-(Dipropylamino)phenyl]diazenyl]benzoic acid, 4-(Dipropylamino)azobenzene-2'-carboxylic acid, 4-(2-Carboxyphenylazo)-N,N-dipropylaniline, p-Dipropylaminoazobenzene-o-carboxylic acid, NSC 7803, EINECS 220-140-8, MFCD00041752
Propyl Red (CAS 2641-01-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H23N3O2 and a molecular weight of 325.40500 g/mol. Key properties include a melting point of 173-175 °C, a boiling point of 515.8ºC at 760mmHg and a flash point of 265.7ºC. GHS hazard statements: H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2641-01-2
- Jingsj CID
- J-1523466-9
- Molecular Formula
- C19H23N3O2
- Molecular Weight
- 325.40500 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 173-175 °C |
|---|---|
| Boiling Point | 515.8ºC at 760mmHg |
| Flash Point | 265.7ºC |
| Exact Mass | 325.17900 |
| PSA | 65.26000 |
| LogP | 5.42660 |
| Vapor Pressure | 1.83E-11mmHg at 25°C |
GHS Safety & Compliance
- H413
Frequently Asked Questions
What is the CAS number of Propyl Red?
The CAS number of Propyl Red is 2641-01-2.
What are the molecular formula and molecular weight of Propyl Red?
Propyl Red has molecular formula C19H23N3O2 and molecular weight 325.40500 g/mol.
Is Propyl Red hazardous?
Propyl Red has GHS hazard statements H413.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Propyl Red (CAS 2641-01-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523466-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.