Premium Ingredient Co.,Ltd

Premium Ingredient Co.,Ltd

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  • Company Name: Premium Ingredient Co.,Ltd
  • Street: Shanguan
  • City: Jiangyin
  • Province/state: Jiangsu
  • Country/region: China
  • Contact Person: Ms.Amelia Bai
  • Department: Sales
  • Tel: 86-510-86995770
  • Fax: 86-510-86993298
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  • CAS No:73-22-3 (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
    Molecular Structure

    Detailed Description

    Supplier: Premium Ingredient Co.,Ltd

    Product Name: L-Tryptophan
    Cas No.: 73-22-3
    Quality Standard: USP30, aji92, feed grade. Following specifications are indicated according to usp30.

    Assay: 98.5% to 101.5%
    Identification: Infrared absorption
    Specific rotation: -29.4° to -32.8°
    PH: 5.5 to 7.0
    Loss on drying: Not more than 0.3%
    Residue on ignition: Not more than 0.1%
    Chloride: Not more than 0.05%
    Sulfate: Not more than 0.03%
    Iron: Not more than 0.003%
    Heavy metals: Not more than 0.0015%
    Organic volatile impurities: Meets the requirements

    Storage: Preserve in well-closed containers.
  • L-Tryptophan
  • L-Tryptophan