Metaraminol Impurity 3 CAS 918-44-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.918-44-5
Molecular FormulaC5H8O4
Molecular Weight132.11 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Metaraminol Impurity 3 CAS 918-44-5 chemical structure

Description

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO supplies Metaraminol Impurity 3 (CAS 918-44-5), a pharmacopoeial impurity reference standard (molecular formula C5H8O4, MW 132.11 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Metaraminol Impurity 3 (C5H8O4) contains a carbohydrate-derived structure. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 132.11 g/mol, it falls into the low-molecular-weight range.

As a certified reference material (CRM), Metaraminol Impurity 3 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC5H8O4
Molecular Weight132.11 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

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