Trimethoprim-13C3 CAS 1189970-95-3

Purity >95%In StockPharmaceutical Standards
CAS No.1189970-95-3
Molecular FormulaC11[13C]3H18N4O3
Molecular Weight293.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Trimethoprim-13C3 CAS 1189970-95-3 chemical structure

Description

CATO supplies Trimethoprim-13C3 (CAS 1189970-95-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11[13C]3H18N4O3. Molecular weight: 293.30 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC11[13C]3H18N4O3
Molecular Weight293.30 g/mol
AppearanceOff-white to pale 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms4

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