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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

IUPAC name:
[2-{[(2-{3-[(4-{ethyl[3-(vinylsulfonyl)phenyl]amino}-6-fluoro-1,3,5-triazin-2-yl)amino]-2-(hydroxy-kO)-5-sulfophenyl}hydrazono-kN2)(4-sulfophenyl)methyl]diazenyl-kN1}-4-sulfobenzoato(6-)-kO]cuprate(4-) sodium salt


CAS number:
NC Blue ROE 1504

Molecular and structural information

Molecular formula:
C33H26CuFN9O14S4 free acid
Molecular weight:
ca. 983.4
Structural formula:
Chemical structure

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