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C.I. Direct Black 103

直接耐晒灰BL

Also known as: Direct Black 103, Direct Fast Grey 2BL, Diazol Light Grey 4B

C.I. Direct Black 103 (CAS 3071-71-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C40H23N7O13S4.4Na and a molecular weight of 1029.888 g/mol. It is also known as Direct Black 103, Direct Fast Grey 2BL and Diazol Light Grey 4B. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3071-71-4
Jingsj CID
J-1176082-5
Molecular Formula
C40H23N7O13S44Na
Chinese Name
直接耐晒灰BL
Molecular Weight
1029.888 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of C.I. Direct Black 103?

The CAS number of C.I. Direct Black 103 is 3071-71-4.

What are the molecular formula and molecular weight of C.I. Direct Black 103?

C.I. Direct Black 103 has molecular formula C40H23N7O13S4.4Na and molecular weight 1029.888 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. Direct Black 103 (CAS 3071-71-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1176082-5 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.