CARMINIC ACID For Microscopy

C.I.No.75470 Used as a red colouring agent.

Article No. Grade Purity CAS No. Molecular Formula Molecular Weight H.S. Code Shelf Life
SC0703 For Microscopy 98% 1260-17-9 C22H20O13 492.4 3203.0090 60 Months

Packings

1 g,5 g

Physical Properties

Physical state at 20 °C Solid
Colour Red
Odour Odorless
pH value 4.8 - 6.2
Solubility in water [% weight] Appreciable (> 10%)

Specifications

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

Safety Information and Hazard Symbols

Symbol
Signal Word
UN No.
IMCO Class No.
Packing Group
Hazardous Statement
Precaution Statement
Risk Statement
Safety Statement 22-24/25
Revision Date : 17-Apr-2014