860956

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860956

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Congo Red  New

certified by the Biological Stain Commission, Dye content 85 %

Synonym:Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y
CAS Number:573-58-0
Linear Formula:C32H22N6Na2O6S2
Molecular Weight:696.66
Colour Index Number:22120
Beilstein Registry Number:3894858
EC Number:209-358-4
MDL number:MFCD00004028

Description

Packaging5, 25 g in glass btl

Properties

gradecertified by the Biological Stain Commission
compositionDye content, 85%
pH range3.0 - 5.0, blue to red
mp>360 °C(lit.)
UV absorptionλmax 497 nm

Safety

Personal Protective EquipmentEyeshields, Gloves, type P2 (EN 143) respirator cartridges
Hazard CodesT
Risk Statements45-63
Safety Statements53-45
WGK Germany3
RTECSQK1400000

Related Products

Replaced byC6277, Congo Red

References

MerckMerck 13,2524
BeilsteinBeil. 16,I,342
referenceRegBook 1 (2), 2765:D / Sax 6, 2426 / Structure Index 1, 439:C:1