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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 673687Generated: October 23, 2026

4-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid

4-Iodo-1-methylpyrazole-5-carboxylic Acid · 4-iodo-2-methylpyrazole-3-carboxylic acid · 4-Iodo-1-methylpyrazole-5-carboxylicAcid>4-IODO-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID · 4-Iodo--1-methyl-1H-pyrazol-5-carboxylic acid · 1H-Pyrazole-5-carboxylic acid, 4-iodo-1-methyl- · 4-Iodo-1-methyl-1H-pyrazole-5-carboxylicacid98% · 4-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid 98% · 4-iodo-1-methyl-1H-pyrazole-5-carboxylic acid(SALTDATA: FREE)

https://huagongshe.com/en/chemical/673687

4-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid molecular structure

Identifiers & Physical Properties

CAS No.75092-30-7
Molecular formulaC5H5IN2O2
Average molar mass252.01 g/mol
Monoisotopic mass251.9395754 g/mol
SMILESCn1ncc(I)c1C(=O)O
InChIKeySZRMOKQNOJYMNK-UHFFFAOYSA-N
PubChem CID673687
EC No.640-130-0
DTXSIDDTXSID60350098

Chemical & Physical Properties

XLogP0.7
Topological polar surface area55.1
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms10
Formal charge0
Complexity153
Melting point242°C(lit.)
Boiling point362.2±27.0 °C(Predicted)
Density2.26±0.1 g/cm3(Predicted)
Storage conditions2-8°C(protect from light)
Physical statepowder to crystal
pKa (acidity coefficient)1.76±0.37(Predicted)
ColorWhite to Almost white
CAS DataBase Reference75092-30-7
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P271-P280
Hazard classIRRITANT
Customs code2933199090

Safety & Regulations

GHS classificationWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 5 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Customs code2933199090
Signal wordWarning
GHS pictogramGHS07
Hazard classIRRITANT
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P271-P280

Applications & Uses

Uses

4-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid is a carboxylic acid derivative that can be used as a pharmaceutical intermediate.