4'-Aminoazobenzene-4-sulphonic acid (CAS 104-23-4)

Chinese name: 4’-氨基偶氮苯-4-磺酸

4'-Aminoazobenzene-4-sulphonic acid is registered under CAS 104-23-4. Molecular formula: C12H10N3NaO3S. Approximate molecular weight: 299.281. SKYSEVEN Chemical provides industrial chemical sourcing support and free CAS tools for global B2B buyers.

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Physical & identity data

CAS Number	104-23-4
English name	4'-Aminoazobenzene-4-sulphonic acid
Chinese name	4’-氨基偶氮苯-4-磺酸
Molecular formula	C12H10N3NaO3S
Molecular weight	299.281
Density	1.43g/cm3
Refractive index	1.663
HS code (ref.)	2927000090

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Authority references

• PubChem
• NIST Chemistry WebBook
• CAS Common Chemistry

FAQ

What is CAS 104-23-4?

4'-Aminoazobenzene-4-sulphonic acid is identified by CAS Registry Number 104-23-4. Molecular formula: C12H10N3NaO3S. SKYSEVEN Chemical provides industrial chemical supply and free CAS lookup tools.

Where can I buy 4'-Aminoazobenzene-4-sulphonic 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 104-23-4 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.