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API Reference Standards

Trimethoprim lactate

Reference StandardAvailable on request

Trimethoprim lactate (CAS 23256-42-0) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Trimethoprim lactate chemical structure
CAS number23256-42-0
FormulaC17H24N4O6
Molar mass380.4 g/mol
Physical formSolid
HS code38229090
InChIKeyIIZVTUWSIKTFKO-UHFFFAOYSA-N
IUPAC name2-hydroxypropanoic acid;5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine

About Trimethoprim lactate

Zemixal lists Trimethoprim lactate for laboratories that identify, quantify or control Trimethoprim and its related substances. For your records (Reference Standard), the material is defined by CAS 23256-42-0, formula C17H24N4O6 and molar mass 380.4 g/mol. It is handled as a solid.

Where it is used

  • Identification & assay
  • Method development & validation
  • QC reference material
  • Fine chemical synthesis

Safe handling

It carries the GHS signal word Danger (H301, H302, H311 and H312), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Trimethoprim

See every impurity, metabolite and related compound we list for this API.

Trimethoprim standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material
  • Fine chemical synthesis

Applications

Specifications and identifiers

Specifications of Trimethoprim lactate
Product nameTrimethoprim lactate
Catalogue numberZX-036334
CAS number23256-42-0
IUPAC name2-hydroxypropanoic acid;5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Molecular formulaC17H24N4O6
Molar mass380.4 g/mol
Exact mass380.1696
GradeReference Standard
Physical formSolid
H-bond donors / acceptors4 / 10
Topological polar surface area163 Ų
HS code38229090
InChIKeyIIZVTUWSIKTFKO-UHFFFAOYSA-N
SMILESCC(C(=O)O)O.COC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
PubChem CID3084396
SynonymsTrimethoprim lactate salt, Trimethoprim lactic Acid, 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate, 2-oxidanylpropanoic acid, Opera_ID_705, Lactic acid, compound with 5-(3,4,5-trimethoxybenzyl)pyrimidine-2,4-diamine (1:1), 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine2-hydroxypropanoate, Trimethoprim lactate salt2,4-Diamino-5-(3,4,5-trimethoxybenzyl)pyrimidine Lactate salt

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H301Toxic if swallowed
  • H302Harmful if swallowed
  • H311Toxic in contact with skin
  • H312Harmful in contact with skin
  • H317May cause an allergic skin reaction
  • H331Toxic if inhaled
  • H332Harmful if inhaled
  • H360May damage fertility or the unborn child

Precautionary statements P203, P261, P262, P264, P270, P271, P272, P280, P301 + P316, P301 + P317, P302 + P352, P304 + P340, P316, P317, P318, P321, P330, P333 + P317, P361 + P364, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Trimethoprim lactate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Trimethoprim lactate

Which CAS number identifies Trimethoprim lactate?
Trimethoprim lactate is registered under CAS 23256-42-0. You may also see it listed as Trimethoprim lactate salt, Trimethoprim lactic Acid, 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate. Our catalogue number for this item is ZX-036334.
What are the formula and molar mass of Trimethoprim lactate?
For Trimethoprim lactate, its formula is C17H24N4O6 and its molar mass is 380.4 g/mol. InChIKey IIZVTUWSIKTFKO-UHFFFAOYSA-N lets you match it in any structure database.
How is Trimethoprim lactate used in pharmaceutical QC?
Trimethoprim lactate is a characterised reference material linked to Trimethoprim. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Trimethoprim lactate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Trimethoprim lactate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Trimethoprim lactate to my country?
Yes. Because Trimethoprim lactate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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