Bismarck Brown R
俾斯麦棕R
Also known as: Basic Brown 4, Vesuvin, CI 21010, 1,3-Benzenediamine, 4,4'-[(4-methyl-1,3-phenylene)bis(azo)]bis[6-methyl-, dihydrochloride, 2,4-Bis(2,4-diamino-5-methyl-1-benzenazo)toluene dihydrochloride, Bismarck Brown Y, Bismarck Brown G, Bismarkbrownr
Bismarck Brown R (CAS 5421-66-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H26Cl2N8 and a molecular weight of 461.39100 g/mol. It is also known as Basic Brown 4, Vesuvin and CI 21010. Key properties include a melting point of 222ºC (dec.)(lit.), a boiling point of 729ºC at 760 mmHg and a flash point of 394.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5421-66-9
- Jingsj CID
- J-29742-4
- Molecular Formula
- C21H26Cl2N8
- Chinese Name
- 俾斯麦棕R
- Molecular Weight
- 461.39100 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 222ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 729ºC at 760 mmHg |
| Flash Point | 394.7ºC |
Frequently Asked Questions
What is the CAS number of Bismarck Brown R?
The CAS number of Bismarck Brown R is 5421-66-9.
What are the molecular formula and molecular weight of Bismarck Brown R?
Bismarck Brown R has molecular formula C21H26Cl2N8 and molecular weight 461.39100 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bismarck Brown R (CAS 5421-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29742-4 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.