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108374 L-Tryptophan

L-Tryptophan for biochemistry. CAS 73-22-3, pH 5.5 - 7.0 (10 g/l, H₂O, 20 °C).

L-Tryptophan MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Trp

108374
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Overview

Replacement Information

Key Spec Table

CAS #Empirical Formula
73-22-3C₁₁H₁₂N₂O₂

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      Description
      Catalogue Number108374
      SynonymsTrp
      References
      Product Information
      CAS number73-22-3
      EC number200-795-6
      Hill FormulaC₁₁H₁₂N₂O₂
      Molar Mass204.23 g/mol
      HS Code2933 99 19
      Structure formula ImageStructure formula Image
      Quality LevelMQ100
      Applications
      ApplicationL-Tryptophan for biochemistry. CAS 73-22-3, pH 5.5 - 7.0 (10 g/l, H₂O, 20 °C).
      Biological Information
      Physicochemical Information
      Melting Point290 °C (decomposition)
      pH value5.5 - 7 (1 g/l, H₂O, 25 °C)
      Bulk density400 kg/m3
      Solubility10 g/l
      Dimensions
      Materials Information
      Toxicological Information
      LD 50 oralLD50 Rat 16000 mg/kg
      Safety Information according to GHS
      RTECSYN6130000
      Storage class10 - 13 Other liquids and solids
      WGKWGK 1 slightly hazardous to water
      Disposal3
      Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      StorageStore at +2°C to +30°C.
      Packaging Information
      Transport Information
      Supplemental Information
      Specifications
      Assay (perchloric acid titration, calculated on dried substance)99.0 - 101.0 %
      Identity (IR-spectrum)passes test
      Identity (specific rotation)passes test
      Spec. rotation (α 20/D, 10 g/l, water, calc. on dried substance)-30.0 to -33.0
      Appearancewhite to almost white, crystalline or amorphous powder
      Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l)clear and colorless
      Chloride (Cl)≤ 200 ppm
      Sulfate (SO₄)≤ 300 ppm
      Fe (Iron)≤ 20 ppm
      Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity)≤ 0.2 %
      Ninhydrin-positive substances (LC) (ammonium (570 nm))≤ 0.02 %
      Ninhydrin-positive substances (LC) (total impurities)≤ 0.5 %
      Loss on drying (105 °C; 3 h)≤ 0.3 %
      Global Trade Item Number
      Catalogue Number GTIN
      1.08374.0010 04022536103532