tert-butyl 4-formyl-1H-pyrazole-1-carboxylate

Also known as: 1-boc-4-formylpyrazole, 1-boc-pyrazole-4-formaldehyde, tert-butyl 4-formylpyrazole-1-carboxylate, 4-formyl-pyrazole-1-carboxylic acid tert-butyl ester, 1H-Pyrazole-1-carboxylic acid, 4-formyl-, 1,1-dimethylethyl ester

tert-butyl 4-formyl-1H-pyrazole-1-carboxylate (CAS 821767-61-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12N2O3 and a molecular weight of 196.20300 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 821767-61-7
Jingsj CID: J-1167430-9
Molecular Formula: C₉H₁₂N₂O₃
Molecular Weight: 196.20300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	196.08500
PSA	61.19000
LogP	1.47880

Customs & Trade Information

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of tert-butyl 4-formyl-1H-pyrazole-1-carboxylate?

The CAS number of tert-butyl 4-formyl-1H-pyrazole-1-carboxylate is 821767-61-7.

What are the molecular formula and molecular weight of tert-butyl 4-formyl-1H-pyrazole-1-carboxylate?

tert-butyl 4-formyl-1H-pyrazole-1-carboxylate has molecular formula C9H12N2O3 and molecular weight 196.20300 g/mol.

What are the upstream and downstream products of tert-butyl 4-formyl-1H-pyrazole-1-carboxylate?

For tert-butyl 4-formyl-1H-pyrazole-1-carboxylate, Upstream Products: Di-tert-butyl dicarbonate, 1H-Pyrazole-4-carboxaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "tert-butyl 4-formyl-1H-pyrazole-1-carboxylate (CAS 821767-61-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1167430-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.