L-Serine CAS NO.56-45-1

Product Name:L-Serine

,pharmaceutical grade

Quantity: 1000Kgs

Batch No:20101016

Producing date: 2010.10.16

Sampling date: 2010.10.16

Send out date: 2010.10.16

Reference standard: usp28

Packing: 25Kgs/Drum

Expiry date: 2012.10.15

Item

Specifications

Results

description

White crystals or crystalline powder

White crystalline powder

Assay ,%

98.5% ~ 101.0%

99.8%

specific l rotation [a]_D^20°

Meets the requirements

+14.0^o ~ +15.6^o

Meets the requirements

+14.5^o

State of Solution

≥98.0%

99.3%

Heavy metals ,%(as Pb)

≤10PPM

<10PPM

Loss on drying,%

≤0.20%

0.10%

Residue on ignition,%

≤0.1%

0.04%

Sulfate(SO₄),%(as SO₄)

≤0.02%

<0.02%

Ammonium(NH₄)

≤0.02%

<0.02%

Iron(as Fe),%

≤10PPM

<10PPM

Chloride,%

≤0.02%

<0.02%

Other Amino acids

No Spot

conforms