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Pharmacopeial Impurities (EP / USP / BP)

Trimethoprim EP Impurity I

Reference StandardAvailable on request

Trimethoprim EP Impurity I (CAS 30078-48-9) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Trimethoprim EP Impurity I chemical structure
CAS number30078-48-9
FormulaC19H20N2O3
Molar mass324.4 g/mol
Physical formSolid
HS code38229090
InChIKeyLMGNGGBSQVPQCO-SQFISAMPSA-N
IUPAC name(Z)-3-anilino-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile

About Trimethoprim EP Impurity I

Zemixal lists Trimethoprim EP Impurity I for laboratories that identify, quantify or control Trimethoprim and its related substances. For your records (Reference Standard), the material is defined by CAS 30078-48-9, formula C19H20N2O3 and molar mass 324.4 g/mol. It is handled as a solid.

Where it is used

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Warning: H302, H315, H317 and H319). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes 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

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Trimethoprim EP Impurity I
Product nameTrimethoprim EP Impurity I
Catalogue numberZX-027426
CAS number30078-48-9
IUPAC name(Z)-3-anilino-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile
Molecular formulaC19H20N2O3
Molar mass324.4 g/mol
Exact mass324.1474
GradeReference Standard
Physical formSolid
XLogP34.2
H-bond donors / acceptors1 / 5
Topological polar surface area63.5 Ų
HS code38229090
InChIKeyLMGNGGBSQVPQCO-SQFISAMPSA-N
SMILESCOC1=CC(=CC(=C1OC)OC)C/C(=C/NC2=CC=CC=C2)/C#N
PubChem CID3035337
SynonymsTrimethoprim EP Impurity I(Mixture of cis/trans Isomers), Trimethoprim - Impurity I, 3-Anilino-2-(3,4,5,-trimethoxybenzyl)acrylonitrile, 3-(phenylamino)-2-(3,4,5-trimethoxybenzyl)prop-2-enenitrile, 3-Anilino-2-(3,4,5,-trimethoxybenzyl)acrylonitrile, (Z)-, 3-(Phenylamino)-2-(3,4,5-trimethoxybenzyl)acrylonitrile, (Z)-3-(Phenylamino)-2-(3,4,5-trimethoxybenzyl)acrylonitrile, 3-(phenylamino)-2-(3,4,5-trimethoxybenzyl)prop-2enenitrile

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, 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 EP Impurity I
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 EP Impurity I

Which CAS number identifies Trimethoprim EP Impurity I?
Trimethoprim EP Impurity I is registered under CAS 30078-48-9. You may also see it listed as Trimethoprim EP Impurity I(Mixture of cis/trans Isomers), Trimethoprim - Impurity I, 3-Anilino-2-(3,4,5,-trimethoxybenzyl)acrylonitrile. Our catalogue number for this item is ZX-027426.
What are the formula and molar mass of Trimethoprim EP Impurity I?
For Trimethoprim EP Impurity I, its formula is C19H20N2O3 and its molar mass is 324.4 g/mol. The systematic (IUPAC) name is (Z)-3-anilino-2-[(3,4,5-trimethoxyphenyl)methyl]prop-2-enenitrile. InChIKey LMGNGGBSQVPQCO-SQFISAMPSA-N lets you match it in any structure database.
How is Trimethoprim EP Impurity I used in pharmaceutical QC?
Trimethoprim EP Impurity I 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 EP Impurity I?
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 EP Impurity I?
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 EP Impurity I to my country?
Yes. Because Trimethoprim EP Impurity I 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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