(Aminooxy)acetic acid hemihydrochloride

羧甲氧基胺半盐酸盐

Also known as: O-(Carboxymethyl)hydroxylamine hemihydrochloride, (Aminooxy)acetic acid hydrochloride (2:1), Carboxymethoxylamine hemihydrochloride, (Carboxymethoxy)amine hemihydrochloride, Hydroxylamine-O-acetic acid hemihydrochloride, 2-(Aminooxy)acetic acid hemihydrochloride, 2-(Aminooxy)acetic acid hydrochloride (2:1), Bis((aminooxy)acetic) acid hydrochloride, Aminooxyacetic acid hemichloride

(Aminooxy)acetic acid hemihydrochloride (CAS 2921-14-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula NH2OCH2COOH·0.5HCl and a molecular weight of 109.30 g/mol. It is also known as O-(Carboxymethyl)hydroxylamine hemihydrochloride, (Aminooxy)acetic acid hydrochloride (2:1) and Carboxymethoxylamine hemihydrochloride. Key properties include a melting point of 156 °C (dec.)(lit.), a boiling point of 326.7ºC at 760 mmHg and a flash point of 151.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2921-14-4
Jingsj CID
J-28562-3
Molecular Formula
NH2OCH2COOH05HCl
Chinese Name
羧甲氧基胺半盐酸盐
Molecular Weight
109.30 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point156 °C (dec.)(lit.)
Boiling Point326.7ºC at 760 mmHg
Flash Point151.4ºC

Frequently Asked Questions

What is the CAS number of (Aminooxy)acetic acid hemihydrochloride?

The CAS number of (Aminooxy)acetic acid hemihydrochloride is 2921-14-4.

What are the molecular formula and molecular weight of (Aminooxy)acetic acid hemihydrochloride?

(Aminooxy)acetic acid hemihydrochloride has molecular formula NH2OCH2COOH·0.5HCl and molecular weight 109.30 g/mol.

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

Last updated:

How to cite: Jingsj. "(Aminooxy)acetic acid hemihydrochloride (CAS 2921-14-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28562-3 (accessed 2026-10-22).

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