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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

O-Benzylhydroxylamine hydrochloride | CAS 2687-43-6

An O-benzylated hydroxylamine salt for oxime-ether chemistry, retaining nitrogen reactivity while the benzyl group occupies oxygen; salt identity and O/N substitution are key procurement distinctions.

CAS2687-43-6
Molecular formulaC7H10ClNO
Molecular weight159.61 g/mol

Product overview

O-Benzylhydroxylamine hydrochloride combines an aminooxy group with a benzyl substituent on oxygen. The available nitrogen functionality supports formation of O-benzyl oxime derivatives from carbonyl compounds. This architecture differs from N-benzylhydroxylamine and from benzylamine, despite the similar names. The hydrochloride form also differs from the free base in formula weight and acid–base balance. Buyers should specify the substitution site and salt form together, then use an organic assay alongside water and counterion information to establish the quantity of reagent supplied.

Chemical identity

Chemical name
O-Benzylhydroxylamine hydrochloride
CAS number
2687-43-6
Molecular formula
C7H10ClNO
Molecular weight
159.61 g/mol

Application context

Published research uses O-benzylhydroxylamine derivatives with aromatic aldehydes to make oxime-ether libraries, including compounds evaluated in enzyme-inhibition studies. The reagent supplies the N–O–benzyl portion of those molecules. For a route forming an oxime ether, qualification should address the carbonyl partner, the salt’s acid contribution and related hydroxylamine species that could create different condensation products.

Chemistry and synthetic role

The key connectivity is H2N–O–CH2Ph in hydrochloride form. O-benzyl substitution leaves nitrogen available for carbonyl condensation.

Quality review

Confirm O-benzyl substitution

Identity data must distinguish the O-benzyl and N-benzyl isomers.

Account for hydrochloride

Agree counterion identity and whether assay is expressed on salt or free-base equivalent basis.

Review condensation-active impurities

Set suitable limits for related hydroxylamine species and water.

Preparing a specification

State O-benzyl identity, hydrochloride form, organic assay basis, counterion and water criteria. Request a method resolving relevant hydroxylamine impurities.

Packaging and storage

Packaging and net weight are agreed for the selected grade, order quantity and destination. Check the actual supplier SDS and label for storage and transport requirements.

Documentation

Request a batch COA, SDS and the analytical methods for the acceptance criteria below. Confirm which supporting chromatograms and identity data are available from the selected manufacturer.

Procurement questions

Is N-benzylhydroxylamine interchangeable?

No. Moving benzyl from oxygen to nitrogen changes the reactive functionality.

Why specify the assay basis?

The two forms have different molecular weights and acid–base requirements.

What impurity information helps an oxime route?

Compounds capable of forming different carbonyl-condensation products deserve particular attention.

Technical sources
  1. PubChem CID 102312NCBI / PubChem
  2. O-Benzylhydroxylamine hydrochlorideTCI
  3. O-Benzylhydroxylamine hydrochloride and related researchSigma-Aldrich