1-(4-Chlorophenyl)-1,2-propandione (CAS 10557-21-8)

Chinese name: 1-(4-氯苯基)-1,2-丙二酮

1-(4-Chlorophenyl)-1,2-propandione is registered under CAS 10557-21-8. Molecular formula: C9H7CLO2. Approximate molecular weight: 182.603. SKYSEVEN Chemical provides industrial chemical sourcing support and free CAS tools for global B2B buyers.

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Physical & identity data

CAS Number	10557-21-8
English name	1-(4-Chlorophenyl)-1,2-propandione
Chinese name	1-(4-氯苯基)-1,2-丙二酮
Molecular formula	C9H7CLO2
Molecular weight	182.603
Melting point	30-32
Boiling point	276.7°C at 760 mmHg
Density	1.246g/cm3
Flash point	115°C
Refractive index	1.538
Vapor pressure	0.00474mmHgat25°C
HS code (ref.)	2914700090

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Authority references

• PubChem
• NIST Chemistry WebBook
• CAS Common Chemistry

FAQ

What is CAS 10557-21-8?

1-(4-Chlorophenyl)-1,2-propandione is identified by CAS Registry Number 10557-21-8. Molecular formula: C9H7CLO2. SKYSEVEN Chemical provides industrial chemical supply and free CAS lookup tools.

Where can I buy 1-(4-Chlorophenyl)-1,2-propandione?

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

How do I verify CAS 10557-21-8 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.