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Shijiazhuang Jirong Pharmaceutical Co.,Ltd.

18 YRS

Hebei, China

CNY 80 Million

33300 m²

Less than 50 people

Main Products: L-Valine / Glycine / L-Glutamic Acid / L-Lysine Hydrochloride / DL-Methionine / L-Threonine / L-Tryptophan / L-Phenylalanine / L-Alanine / L-Arginine

Hebei, China

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L-Tryptophan / CAS 73-22-3

OVERVIEW

Packaging

25 KG/Fibre Drum

Lead Time

14-30 days

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DESCRIPTION

L-Tryptophan

CAS No.: 73-22-3

Molecular formular: C₁₁H₁₂N₂O₂

Molecular weight: 204.23

L-Tryptophan	AJI92	USP40	EP6.0
Description	White to yellowish white crystals or crystalline powder	/	White or almost white,crystalline or amorphous powder
Identification	Conform	Conform	Conform
Solubility	/	/	Sparingly soluble in water, slightly soluble in ethanol(96 percent). It dissolves in dilute solutions of mineral acids and alkali hydroxides.
Appearance of solution	/	/	The solution is clear and not more intensively coloured than reference solution BY6
Assay	98.5%~100.5%	98.5%~101.5%	98.5%~101.0%
pH	5.4～6.4	5.5~7.0	/
Transmittance	≥95.0%	/	/
Loss on drying	≤0.20%	≤0.3%	≤0.5%
Residue on ignition	≤0.10%	≤0.1%	≤0.1%
Chloride	≤0.020%	≤0.05%	≤200ppm
Heavy Metals	≤10ppm	≤15ppm	≤10ppm
Iron	≤20ppm	≤30ppm	≤20ppm
Sulfate	≤0.020%	≤0.03%	≤300ppm
Ninhydrin-positive substances (TLC)	/	/	Conform
Arsenic	≤1ppm	/	/
Ammonium	≤0.02%	/	≤200ppm
Other amino acids	Meet the requirements	/	/
Pyrongen	Conform	/	/
Specific Rotation	-30.0° ～ -32.5°	-29.4°~ -32.8°	-30.0°～-33.0°
Organic impurities	/	Conforms	/

Typical Properties

It is used in biochemical research and medicine as a sedative.

CAS No.

73-22-3

Formula

C11H12N2O2

Molecular Mass

204.22500

Exact Mass

204.09000

PSA

79.11000

Logp

1.82260

IUPAC

(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid

SMILES

C1=CC=C2C(=C1)C(=CN2)CC(C(=O)O)N

Matter Classification

organic

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