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250309

Aldrich

4-Amino-1,1′-azobenzene-3,4′-disulfonic acid sodium salt

Dye content 95 %


Synonym:	2-Amino-5-([4-sulfophenyl]azo)benzenesulfonic acid, Acid Yellow 9
CAS Number:	2706-28-7
Linear Formula:	RO₃SC₆H₄N=NC₆H₃(NH₂)SO₃R, R = H or Na
Molecular Weight:	379.34
Colour Index Number:	13015
EC Number:	220-293-0
MDL number:	MFCD00007481
PubChem Substance ID:	24855050

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Description

Packaging

25, 100 g in glass btl

Properties

composition	Dye content, 95%
UV absorption	λ_max 489 nm

Safety

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
WGK Germany	1
RTECS	DB5035000

References

Beilstein	Beil. 16,II,219
reference	Aldrich MSDS 1, 58:D / Corp MSDS 1 (1), 136:A / RegBook 1 (2), 2743:J / Sigma FT-IR 1 (2), 97:C / Stains and Dyes Ref, 360 / Structure Index 1, 434:B:2

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