CARMINIC ACID

  • SYNONYMS :
  • Natural Red 4

Article No. 02550 Grade For Microscopy
Purity 98% CAS No. 1260-17-9
Molecular Formula C22H20O13 Molecular Weight 492.40
H.S. Code 3203.0090 Shelf Life 5 Years
C.I.No.75470 Used as a red colouring agent.
 

 

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
 

Packings

00001 1 g Request for price
00005 5 g Request for price
 
Revision Date : 17-Apr-2014

Specifications

Appearance Dark brownish red powder
Assay (acidimetric, on dried substance) Min 98%
Loss on drying (105°C) Max 7.0%
Suitability for microscopy Passes test
Absorption maxima λmax at pH 3.0 490 - 495 nm
Specific absorptivity 1%; 1cm; λ max Min 130