C.I. Basic Brown 4
碱性棕4
Also known as: Bismarck Brown R, Bismark Brown R, Basic Brown 4, C.I. 21010, Bismarck Brown, Bismarck Brown TSS, Vesuvine Brown, 4,4'-[(4-Methyl-1,3-phenylene)bis(azo)]bis[1,3-benzenediamine] dihydrochloride, 5,5'-[(4-Methyl-m-phenylene)bis(azo)]bis[toluene-2,4-diamine] dihydrochloride, Nitrous acid, reaction products with 4-methyl-1,3-benzenediamine hydrochloride, [4-[5-(4-azaniumyl-2-azanyl-5-methyl-phenyl)diazenyl-2-methyl-phenyl]diazenyl-5-azanyl-2-methyl-phenyl]azanium dichloride, EINECS 232-341-8
C.I. Basic Brown 4 (CAS 8005-78-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C21H24Cl2N8 and a molecular weight of 459.37500 g/mol. It is also known as Bismarck Brown R, Bismark Brown R and Basic Brown 4. Key property: a melting point of 222ºC (dec.)(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 8005-78-5
- Jingsj CID
- J-1363147-5
- Molecular Formula
- C21H24Cl2N8
- Chinese Name
- 碱性棕4
- Molecular Weight
- 459.37500 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 222ºC (dec.)(lit.) |
|---|
Frequently Asked Questions
What is the CAS number of C.I. Basic Brown 4?
The CAS number of C.I. Basic Brown 4 is 8005-78-5.
What are the molecular formula and molecular weight of C.I. Basic Brown 4?
C.I. Basic Brown 4 has molecular formula C21H24Cl2N8 and molecular weight 459.37500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "C.I. Basic Brown 4 (CAS 8005-78-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1363147-5 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.