3-[(4-Aminophenyl)azo]-benzenesulfonic acid (CAS 102-23-8)

Chinese name: 4-氨基苯基偶氮苯-3’-磺酸

3-[(4-Aminophenyl)azo]-benzenesulfonic acid is registered under CAS 102-23-8. Molecular formula: C12H11N3O3S. Approximate molecular weight: 277.299. SKYSEVEN Chemical provides industrial chemical sourcing support and free CAS tools for global B2B buyers.

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Physical & identity data

CAS Number	102-23-8
English name	3-[(4-Aminophenyl)azo]-benzenesulfonic acid
Chinese name	4-氨基苯基偶氮苯-3’-磺酸
Molecular formula	C12H11N3O3S
Molecular weight	277.299
Density	1.43
HS code (ref.)	2927000090

Applications (reference)

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Authority references

• PubChem
• NIST Chemistry WebBook
• CAS Common Chemistry

FAQ

What is CAS 102-23-8?

3-[(4-Aminophenyl)azo]-benzenesulfonic acid is identified by CAS Registry Number 102-23-8. Molecular formula: C12H11N3O3S. SKYSEVEN Chemical provides industrial chemical supply and free CAS lookup tools.

Where can I buy 3-[(4-Aminophenyl)azo]-benzenesulfonic acid?

Request a quote on cnchemshop.com. SKYSEVEN Chemical supplies industrial grades with COA/SDS on request for export orders.

How do I verify CAS 102-23-8 data?

Cross-check PubChem / NIST / CAS Common Chemistry, and use our free CAS lookup tool. Always match CAS on COA and invoice.

Data is for informational reference only. Verify lot-specific values with COA/SDS. Not for medical advice.