L-(+)-Ergothioneine CAS #497-30-3

L-(+)-Ergothioneine CAS #497-30-3



Certificate of Analysis


General Information  
Product Name Ergothioneine Batch Number OT-20230525
Produce Date 2023-05-25 Report Date 2023-05-26
CAS No. 497-30-3 Expiry Date 2025-05-24
Item Speicification Method Result
Assay ≥99.0% HPLC 99.9%
Appearance White Powder Organoleptic Conforms
Odor Characteristic Organoleptic Conforms
Physical & Chemical Characteristics    
Melting point 275-277℃ 276℃ /
Optical Rotation [α]D≥(+)122°(c=1,H2 O) USP<781> +123.8°
Loss on Drying ≤0.5% USP<731> 0.18%
Residual solvent ≤200ppm GC 52.06ppm
Heavy metals      
Total Heavy Metals ≤10 ppm USP<231> Conforms
Arsenic(As) ≤1.0 ppm USP<730> Conforms
Mercury(Hg) ≤0 2ppm USP<730> Conforms
Cadmium(Cd) ≤0.3 ppm USP<730> Conforms
Lead(Pb) ≤1.0 ppm USP<730> Conforms
Microbiological Tests      
Total Plate Count ≤1000cfu/g USP<2021> Conforms
Total Yeast & Mold ≤100cfu/g USP<2021> Conforms
E.Coli. Negative USP<2022> Negative
Salmonella Negative USP<2022> Negative
Pseudomonas aeruginosa Negative USP<2022> Negative
Staphylococcus aureus Negative USP<2022> Negative

Storage: Store in well-closed container at room temperature, protect from light,moisture and pest infestation Non-GMO, Non-irradiated.



Analyst : Fang Yuan                                      Inspector :   Wang Ping  

Additional information

Weight 1 kg

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