Congo Red (CI.22120)
(24120761 | 573-58-0)

CAS: 573-58-0
Molecular Formula: C32H22N6Na2O6S2
Molecular Weight: 696.66
Availablility: In Stock
Downloads: Product Specification | Safety Data Sheet [EN]
Congo Red (CI.22120) Chemical Structure

24120761-100g 100g £43.40
Bulk Order
24120761-100g 100g €60.80
Bulk Order
24120761-100g 100g $65.10
Bulk Order
Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 24120761
Product Name Congo Red (CI.22120)
Categories Stains & Indicators
CAS 573-58-0
Molecular Formula C32H22N6Na2O6S2
Molecular Weight 696.66
Storage Details Ambient
Harmonised Tariff Code 3212900000

Product Specification
Loss on Drying 10% max
Appearance Red powder
Solubility at 0.1% in water Clear red solution
Wavelenght of max absorption 495.0 - 503.0nm
Specific Absorbance (E 1%/1cm) 500 min

Safety Information
Exclamation Mark
Danger to Health
Signal word danger
Hazard statements
  • H319: Causes serious eye irritation

  • H350: May cause cancer

  • H361d: Suspected of damaging fertility. Suspected of damaging the unborn child
Precautionary statements
  • P201: Obtain special instructions before use

  • P260: Do not breathe dust/fume/gas/mist/vapours/spray

  • P263: Avoid contact during pregnancy/while nursing

  • P280: Wear protective gloves/protective clothing/eye protection/face protection

  • P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing

  • P308+313: IF exposed or concerned: Get medical advice/attention

Frequently Purchased Together
Bismarck Brown R (C.I. 21010) Chemical Structure
Bismarck Brown R (C.I. 21010)


Availablility: In Stock

View Product
Rose Bengal (C.I.45440) Chemical Structure
Rose Bengal (C.I.45440)


Availablility: In Stock

View Product
Eosin Y (C.I. 45380) Chemical Structure
Eosin Y (C.I. 45380)


Availablility: In Stock

View Product
Safranine O (C.I. 50240) Chemical Structure
Safranine O (C.I. 50240)


Availablility: In Stock

View Product