L-Tryptophan CAS 73-22-3

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CAS: 73-22-3

MF: C₁₁H₁₂N₂O₂

MW: 204.23

Product Info
Product Spec
Safety Info
Application

Product Description

Tryptophan is an alpha-amino acid that is essential in humans. It is used in the biomanufacturing of recombinant proteins and monoclonal antibodies. It is an important constituent in cell culture media.

Product Categories	Amino Acids, Biochemicals, Reagents for Cell Culture
CAS RN	73-22-3
Alternative CAS RN	-
EC Number	200-795-6
MDL Number	MFCD00064340
Storage Temperature	+20°C
Shipping Temperature	Ambient
Harmonised Tariff Code	2933998090

Physical Description	White to off-white powder
Identification (IR)	To conform to standard
pH (1% in water)	5.5 - 7.0
Specific Optical Rotation ([α]25/D)	−29.4 - −32.8 ° (10mg/ml, water)
Loss on Drying	≤ 0.3% (105°C, 3h)
Residue on Ignition	≤ 0.1%
Lead (Pb)	≤ 3ppm
Arsenic (As)	≤ 1ppm
Cadmium (Cd)	≤ 1ppm
Mercury (Hg)	≤ 0.1ppm
Chloride	≤ 0.05%
Sulphate	≤ 0.03%
Iron (Fe)	≤ 30ppm
Heavy Metals	≤ 15ppm
Organic Impurities	≤ 0.01% of total impurites prior to peak and ≤ 0.03% of total impurities after peak
Related Compound A	To pass test
Assay	98.5 - 101.5 % (dried basis)
Pharmacopoeia Specification(s)	USP
Specification Version	1.2