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HONGKUN / PRODUCT DIRECTORY

DMMT — Cefotiam side-chain precursor | CAS 61607-68-9

DMMT combines a sulfur-bearing tetrazole with an N1-linked dimethylaminoethyl group, matching a published cefotiam C3 side-chain precursor; qualification should confirm the substitution position, linker and absence of an unspecified salt form.

CAS61607-68-9
Molecular formulaC5H11N5S
Molecular weight173.24 g/mol

Product overview

Two different functional features distinguish DMMT: the tetrazole sulfur function and the tertiary amine at the end of its two-carbon substituent. CAS 61607-68-9 identifies the N1-substituted parent compound, also represented by a corresponding tetrazole-thione name. It should not be confused with simpler methylmercaptotetrazoles or with a hydrochloride form inferred from the presence of an amine. Patent literature explicitly describes this molecule as a cefotiam C3 side-chain precursor. For purchasing, that role is useful only when the exact structure accompanies the application name. Qualification should address substitution identity, sulfur-related substances and the reporting basis of assay results, rather than treating every cefotiam intermediate as interchangeable.

Chemical identity

Chemical name
1-[2-(Dimethylamino)ethyl]-1H-tetrazole-5-thiol (DMMT)
CAS number
61607-68-9
Molecular formula
C5H11N5S
Molecular weight
173.24 g/mol

Application context

DMMT supplies the C3 side-chain precursor in published cefotiam chemistry. Its sulfur-bearing tetrazole carries a dimethylaminoethyl substituent at N1, combining the required heterocycle and aminoalkyl chain in one fragment. Match this parent structure to the route input, including when documents use thiol, thione or DMMT terminology. If a salt is proposed, specify its counterion and assay conversion. Set chromatographic purity and any titrimetric assay separately to assess composition and usable material content.

Chemistry and synthetic role

The tetrazole is substituted at N1 by a two-carbon chain terminating in a dimethylamino group. Its C5 thiol/thione system provides the sulfur-bearing function. CAS 61607-68-9 specifies the parent compound; a proposed acid-addition salt should identify its counterion and stoichiometry.

Quality review

Confirm N1 substitution and linker

Identify the tetrazole attachment position and two-carbon chain, distinguishing other N-substituted or aminoalkyl analogues.

Keep the chemical form explicit

The verified parent formula contains no external counterion. Reassess identity and assay conversion if a salt is proposed.

Review sulfur and assay evidence

Discuss relevant sulfur-related impurities and clarify the respective roles of HPLC and any neutralization titration.

Preparing a specification

State DMMT, CAS 61607-68-9, and the N1-dimethylaminoethyl parent structure. Specify assay basis, HPLC method and relevant sulfur-related substances, and require explicit agreement before substituting a salt form.

Packaging and storage

Confirm packaging format, net weight and transport arrangements for the selected grade, quantity and destination. Agree storage and handling conditions using the actual supplied material’s SDS and label.

Documentation

Request the proposed specification, batch COA and current SDS. Confirm availability of structural identification, chromatograms and the assay or titration method, including any counterion statement where relevant.

Procurement questions

Is DMMT the same as a methylmercaptotetrazole?

No. Its N1 substituent is a dimethylaminoethyl group with a two-carbon linker.

Does the tertiary amine mean a hydrochloride is supplied?

No. Salt identity must be stated explicitly and checked against the formula and CAS.

Which cefotiam fragment does DMMT provide?

It supplies the sulfur-bearing tetrazole precursor for the C3 side chain, including its N1-dimethylaminoethyl substituent.

Technical sources
  1. PubChem CID3017268: 1-[2-(Dimethylamino)ethyl]-2H-tetrazole-5-thioneNCBI / PubChem
  2. 1-(2-Dimethylaminoethyl)-5-mercaptotetrazole D2032Tokyo Chemical Industry
  3. CN101817796A: Method for preparing cefotiam side chainCNIPA patent publication via Google Patents