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1-Methyl-1H-indazole-3-carboxylic acid

Also known as: 1-Methylindazole-3-carboxylic acid, 1-Methyl-3-indazolecarboxylic acid, 1-Methylindazole-3-carboxylic Acid (Granisetron Impurity D), Granisetron Related Compound D, 1-Methyl-1H-indazol-3-carboxylic acid, 1-Methyl-indazole-3-carboxylic acid, N-Methylindazole-3-carboxylic acid, MFCD00272569

1-Methyl-1H-indazole-3-carboxylic acid (CAS 50890-83-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O2 and a molecular weight of 176.17 g/mol. Key properties include a melting point of 213 °C, a boiling point of 383.7±15.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 185.8±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50890-83-0
Jingsj CID
J-3571-2
Molecular Formula
C9H8N2O2
Molecular Weight
176.17 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point213 °C
Boiling Point383.7±15.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point185.8±20.4 °C
Exact Mass176.058578
PSA55.12000
LogP1.41
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.653

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 1-Methyl-1H-indazole-3-carboxylic acid?

The CAS number of 1-Methyl-1H-indazole-3-carboxylic acid is 50890-83-0.

What are the molecular formula and molecular weight of 1-Methyl-1H-indazole-3-carboxylic acid?

1-Methyl-1H-indazole-3-carboxylic acid has molecular formula C9H8N2O2 and molecular weight 176.17 g/mol.

Is 1-Methyl-1H-indazole-3-carboxylic acid hazardous?

1-Methyl-1H-indazole-3-carboxylic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 1-Methyl-1H-indazole-3-carboxylic acid?

For 1-Methyl-1H-indazole-3-carboxylic acid, Upstream Products: 1H-Indazole-3-carboxylic acid, Dimethyl sulfate, iodomethane; Downstream Products: 1-methyl-1H-indazole-3-carbonyl chloride, Methyl 1-methyl-1H-indazole-3-carboxylate, Granisetron.

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

Last updated:

How to cite: Jingsj. "1-Methyl-1H-indazole-3-carboxylic acid (CAS 50890-83-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3571-2 (accessed 2026-11-09).

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