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SNC INTERNATIONAL CO., LIMITED
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L-Tryptophan USP24 |
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Standard: USP24
Specifications:
(1) Assay: 98.5% ~ 101.5%
(2) Appearance: white crystalline powder
(3) Identification: infrared absorption
(4) Specific optical rotation: -29.4° ~ -32.8°
(5) pH: 5.5 ~ 7.0
(6) Loss on drying: not more than 0.3%
(7) Residue on ignition: not more than 0.1%
(8) Chloride (as Cl): not more than 0.05%
(9) Sulphate (as SO4): not more than 0.03%
(10)Iron: not more than 0.003%
(11)Heavy metals: not more than 0.0015%
(12)Organic volatile impurities: meet the requirements
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Contact Information |
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| Company Name: |
SNC INTERNATIONAL CO., LIMITED
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| Contact Person: |
David Yang
(Your message will be sent to the supplier directly) |
| Address: |
Room No. 711, Minmetals Building, No. 47, Xiangjiang Road, Hexi District,,
Tianjin,
Tianjin, China |
| Zip: |
300210 |
| Telephone: |
86-22-2822-1962
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| Fax: |
86-22-2822-1960 |
| Web Site: |
http://www.snc-intl.com |
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