tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate

4-碘吡唑-1-甲酸叔丁酯

Also known as: 1-Boc-4-iodopyrazole, tert-Butyl 4-iodopyrazole-1-carboxylate, t-Butyl 4-iodopyrazole-1-carboxylate, 4-IODO-PYRAZOLE-1-CARBOXYLIC ACID TERT-BUTYL ESTER, 1H-Pyrazole-1-carboxylic acid, 4-iodo-, 1,1-dimethylethyl ester, N-Boc-4-iodopyrazole

tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate (CAS 121669-70-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11IN2O2 and a molecular weight of 294.09000 g/mol. It is also known as 1-Boc-4-iodopyrazole, tert-Butyl 4-iodopyrazole-1-carboxylate and t-Butyl 4-iodopyrazole-1-carboxylate. Key properties include a melting point of 67-70â„ƒ and a boiling point of 312°C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 121669-70-3
Jingsj CID: J-4297-2
Molecular Formula: C₈H₁₁IN₂O₂
Chinese Name: 4-碘吡唑-1-甲酸叔丁酯
Molecular Weight: 294.09000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	67-70â„ƒ
Boiling Point	312°C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate?

The CAS number of tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate is 121669-70-3.

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

tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate has molecular formula C8H11IN2O2 and molecular weight 294.09000 g/mol.

Is tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate hazardous?

tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate has GHS signal word Warning.

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

Last updated: 8/21/2026

How to cite: Jingsj. "tert-Butyl 4-iodo-1H-pyrazole-1-carboxylate (CAS 121669-70-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4297-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.