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L-Tyrosine or 4-Hydroxyphenylalanine or (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid USP EP BP Ph Eur Grade Supplier Exporter Manufacturers' Representative |
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L-Tyrosine or 4-Hydroxyphenylalanine or (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid
CAS Number: 60-18-4
Molecular Formula: C9H11NO3
Molecular Weight: 181.19
L-Tyrosine or 4-Hydroxyphenylalanine or (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid
Tyrosine USP Grade Specifications:
C9H11NO3 --- 181.19
l-Tyrosine CAS 60-18-4
UNII: 42HK56048U
DEFINITION
Tyrosine contains NLT 98.5% and NMT 101.5% of l-tyrosine (C9H11NO3), calculated on the dried basis.
IDENTIFICATION
A. Infrared Absorption.
Residue on Ignition: NMT 0.4%
Chloride and Sulfate, Chloride: NMT 0.04%
Chloride and Sulfate, Sulfate: NMT 0.04%
Iron: NMT 30 ppm.
Related Compounds: To pass the test.
Any individual impurity: NMT 0.5%
Total impurities: NMT 2.0%
Optical Rotation, Specific Rotation:
Sample solution: 50 mg/mL in 1 N hydrochloric acid.
Acceptance criteria: −9.8° to −11.2°
Loss on Drying: Dry a sample at 105C for 3 h: it loses NMT 0.3% of its weight.
We also supply L-Tyrosine BP Ph Eur Grade.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
Email: info@ammol.org