tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate

C.I.活性蓝203

Also known as: C.I. Reactive blue 203, 2,7-Naphthalenedisulfonic acid, 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt, Tetrasodium 4-amino-6-((2,5-dimethoxy-4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)-5-hydroxy-3-((4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-2,7-disulphonate, 4-Amino-6-[[2,5-dimethoxy-4-[[2-[(sodiosulfo)oxy]ethyl]sulfonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-[(sodiosulfo)oxy]ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt, Einecs 282-468-8

tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate (CAS 84229-70-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C28H25N5Na4O21S6 and a molecular weight of 1051.87000 g/mol. It is also known as C.I. Reactive blue 203, 2,7-Naphthalenedisulfonic acid, 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt and Tetrasodium 4-amino-6-((2,5-dimethoxy-4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)-5-hydroxy-3-((4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-2,7-disulphonate. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
84229-70-9
Jingsj CID
J-1401567-4
Molecular Formula
C28H25N5Na4O21S6
Chinese Name
C.I.活性蓝203
Molecular Weight
1051.87000 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate?

The CAS number of tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate is 84229-70-9.

What are the molecular formula and molecular weight of tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate?

tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate has molecular formula C28H25N5Na4O21S6 and molecular weight 1051.87000 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "tetrasodium 4-amino-6-[[2,5-dimethoxy-4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]-5-hydroxy-3-[[4-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2,7-disulphonate (CAS 84229-70-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401567-4 (accessed 2026-10-24).

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