L(-)-Tryptophan ≥99% for biochemistry
Plastic bottle for solids, 25 g
Supplier: VWR Chemicals
L(-)-Tryptophan ≥99% for biochemistry
Catalog # 28821.131
Supplier: VWR Chemicals
CAS Number: 73-22-3
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Product Details & Documents
Synonyms: L-Tryptophan, Tryptophan, L-α-Amino-3-indolepropionic acid, (S)-2-Amino-3-(3-indolyl)propionic acid, H-Trp-OH
- CAS Number:73-22-3
- Formula:C₁₁H₁₂N₂O₂
- MDL Number:MFCD00064340
- Molecular Weight:204.23 g/mol
- Merck Index:12,09929
- Melting Pt:290 °C
- Density:1.34 g/cm³ (20 °C)
- Storage Temperature:Ambient
- EINECS:200-795-6
Documents
Certificates
Search by Lot NumberP20_VWRC28821.131_SPEC_EN.pdf spec_VWRC28821.131 spec_VWRC28821.131
Product specification
Specifications
Specification Test Results
- Assay (HClO4) (on dried substance):≥ 99 %
- Identification (IR):Passes test
- Identification (specific rotation):Passes test
- Appearance of solution (10 g/l; HCl 1 M):Clear and colourless
- Specif. opt. rotation (10 g/l; on dried):-33.0 - -30.0 °
- Ninhydrin-positive substances (any):≤ 0.2 %
- Ninhydrin-positive subst. (NH4 (570 nm)):≤ 0.02 %
- Ninhydrin-positive substances (total):≤ 0.5 %
- Cl (Chloride):≤ 200 ppm
- SO4 (Sulphate):≤ 300 ppm
- Fe (Iron):≤ 20 ppm
Specifications
- Pack type:Plastic bottle for solids
- Pk:25 g