Trimethoprim EP Impurity D CAS 92440-76-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.92440-76-1
Molecular FormulaC14H17N3O4
Molecular Weight291.30 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Trimethoprim EP Impurity D CAS 92440-76-1 chemical structure

Description

Trimethoprim EP Impurity D (CAS 92440-76-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H17N3O4. Molecular weight: 291.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC14H17N3O4
Molecular Weight291.30 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms3

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