Note: Ingredients listed on restricted chemical lists
EC/CAS
573-58-0
Name of the chemical
C.I. Direct Red 28
Concentration
100%
General Information
Version
1.0
Revision date
2026-02-23
Product name
Congo Red, Certified
Substance name
Congo Red, Certified
Product Synonyms
C.I. Direct Red 28; Direct Red 28
Chemical name
Disodium 3,3"-[[1,1"-biphenyl]-4,4"-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate)
CAS No.
573-58-0
supplier name
G-Biosciences/ Geno Technology, Inc
Emergency telephone
1-800-424-9300, +1-703-527-3887
Icons in SDS
Company Information
company name
G-Biosciences/ Geno Technology, Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H350, H361
Hazard statements
Code
Statements
H350
May cause cancer
Section 2
SECTION 2: Hazards identification
Classification of the substance or mixture GHS US classification Carcinogenicity, Category 1B H350 May cause cancer Reproductive toxicity, Category 2 H361 Suspected of damaging fertility or the unborn child Full text of H statements see section 16
2.2 Label elements
GHS US labeling
Signal word
Danger
Hazard statements
H350 - May cause cancer. H361 - Suspected of damaging fertility or the unborn child
Precautionary statements
P201 - Obtain special instructions before use. P202 - Do not handle until all safety precautions have been read and understood. P280 - Wear protective gloves, protective clothing, eye protection, face protection, and hearing protection. P308+P313 - If exposed or concerned: Get medical advice/attention. P405 - Store locked up. P501 - Dispose of contents and/or container to hazardous or special waste collection point, in accordance with local, regional, national and/or international regulations. 2.3. Hazards associated with known or reasonably anticipated uses No additional information available
2.3 Other hazards
No additional information available 2.5. Unknown acute toxicity No additional information available
2.1 Classification of the substance or mixture
GHS US classification Carcinogenicity, Category 1B H350 May cause cancer. Reproductive toxicity, Category 2 H361 Suspected of damaging fertility or the unborn child. Full text of H statements : see section 16 2.2. Label elements GHS US labeling Hazard pictograms (GHS US) : Signal word (GHS US) : Danger
