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1-Methylbiguanide monohydrochloride

Also known as: Metformin Related Compound B, Metformin Impurity E HCl, Metformin Impurity E HCl Salt, Metformin EP Impurity E HCl, Metformin Impurity 5(HCl), 1-Methylbiguanide hydrochloride, 1-(diaminomethylidene)-2-methylguanidine hydrochloride

1-Methylbiguanide monohydrochloride (CAS 1674-62-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H10ClN5 and a molecular weight of 151.59800 g/mol. Key properties include a boiling point of 295.3ºC at 760mmHg, a density of 1.45g/cm3 and a flash point of 132.4ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1674-62-0
Jingsj CID
J-1430474-6
Molecular Formula
C3H10ClN5
Molecular Weight
151.59800 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point295.3ºC at 760mmHg
Density1.45g/cm3
Flash Point132.4ºC
Exact Mass151.06200
PSA97.78000
LogP1.10720
Vapor Pressure0.00154mmHg at 25°C
Refractive Index1.624

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Frequently Asked Questions

What is the CAS number of 1-Methylbiguanide monohydrochloride?

The CAS number of 1-Methylbiguanide monohydrochloride is 1674-62-0.

What are the molecular formula and molecular weight of 1-Methylbiguanide monohydrochloride?

1-Methylbiguanide monohydrochloride has molecular formula C3H10ClN5 and molecular weight 151.59800 g/mol.

Is 1-Methylbiguanide monohydrochloride hazardous?

1-Methylbiguanide monohydrochloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 1-Methylbiguanide monohydrochloride?

For 1-Methylbiguanide monohydrochloride, Downstream Products: Cyanamide, N-methylguanidine, Guanidine hydrochloride.

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-Methylbiguanide monohydrochloride (CAS 1674-62-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1430474-6 (accessed 2026-11-09).

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