1-Methyl-1H-pyrazole-5-sulphonyl chloride (CAS 1020721-61-2)

Chinese name: 1-甲基-1H-吡唑-5-磺酰氯

1-Methyl-1H-pyrazole-5-sulphonyl chloride is registered under CAS 1020721-61-2. Molecular formula: C4H5ClN2O2S. Approximate molecular weight: 180.6127. SKYSEVEN Chemical provides industrial chemical sourcing support and free CAS tools for global B2B buyers.

Open in CAS Lookup · MW Calculator · RFQ Template · Request quote

Physical & identity data

CAS Number	1020721-61-2
English name	1-Methyl-1H-pyrazole-5-sulphonyl chloride
Chinese name	1-甲基-1H-吡唑-5-磺酰氯
Molecular formula	C4H5ClN2O2S
Molecular weight	180.6127
HS code (ref.)	2933990090

Related products at SKYSEVEN Chemical

No on-catalog product linked yet. Contact sales with CAS 1020721-61-2 for availability.

Authority references

• PubChem
• NIST Chemistry WebBook
• CAS Common Chemistry

FAQ

What is CAS 1020721-61-2?

1-Methyl-1H-pyrazole-5-sulphonyl chloride is identified by CAS Registry Number 1020721-61-2. Molecular formula: C4H5ClN2O2S. SKYSEVEN Chemical provides industrial chemical supply and free CAS lookup tools.

Where can I buy 1-Methyl-1H-pyrazole-5-sulphonyl chloride?

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

How do I verify CAS 1020721-61-2 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.