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Certificate of Analysis
Product Name: 3-(Methylseleno)-L-alanine Catalogue Number: GR-147004
Batch Size: N/A Lot Number: 20230407
CAS Number: 26046-90-2 Production Date:
Molecular Formula: C4H9NO2Se Report Date: 2023-04-07
Molecular Weight: 182.09 Expiry Date:
Storage: Room temperature, Protected from light and Sealed


Test Items Specifieation Results
Appearance White to off white poweder Complies
Arsenic ≤ 2 ppm < 2 ppm
Assay (UPLC) ≥ 98.0% 98.4%
Heavy Metals (Pb) ≤ 10 ppm < 10 ppm
Identification (Mass Spectrometry) Consistent with structure Complies
pH 5.0 to 7.0 5.7
Specific Rotation -10 to -15 -12
Water Content ≤ 1.5% 1.0%
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