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Alpha Lipoic Acid

• Company Name:Hong Kong Henry Industry Co., Ltd.
• Posting Date:  October-10-2008
• Category:  Chemicals
• Contact Person:Miss Henry
• Tel Number:  86-13588477542
• Fax Number:  86-571-87913115
• Website:http://www.henryindustry.com

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Address:Room 402, Building 20, Ding'an Yuan Hangzhou City, Zhejiang Province, China.
Zip:310003
Molecular Formula: C8H14O2S2 Molecular Weight: 206.33 Structural Formular : Character: Slightly yellow crystal or powder; Almost odorless, It dissolves difficult in water, but easily in alcohol, ether, and chloroform. Uses: Medicine of vitamin;Acute and chronic hepatitis, cirrhosis, hepatic coma, fatty liver, etc.

Appearance

Slightly yellow crystal powder almost ordeless

Conforms

Identification

Conforms

Conforms

Melting point

60ºC -62ºC

62ºC

Loss on drying

0.20% Max

0.18%

Residue on ignition

0.10% Max

0.06%

Specific rotation

-1.0º― +1.0º

Conforms

Limit of polymer content

2.0% max

Conforms

Related Substances by HPLC

6,8-Epitrithleoctanolic acid(EPI)

0.10% Max

0.09%

Single impurities

0.10% Max

0.04%

Total Impurities

0.50% Max

0.30%

Residue by GC

Cyelohexane

1000 PPM Max

940 PPM

Ethyl acetate

250 PPM Max

180 PPM

Toluene

20 PPM Max

16 PPM

Total acrobes counts

1000cfu/g Max

100 cfu/g

Moulds and yeasts

100cfu/g Max

Less than 10 cfu/g

E.coli/Salmonella

Absence/g

Not detectable

Staphyloeaccus nureate

Absence/g

Not detectable

Particle size

100% through 40 mesh

conforms

Losse bulk density

0.279g/ml

Assay

99.0-101.0%

99.54%

Result: The product conform to USP28

OIT 2-n-octyl-4-

6-Benzylaminopur

D-Ribose

TCC Triclocarban

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Complaint: Description