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Tyrosine

Inquiry
  Post Date: Jun 20,2016
  Expiry Date: Jun 20,2017
  Detailed Description: Cas No. :60-18-4 Quantity: 5000Metric Tons
Payment Method: T/T L/C
Product Name: Tyrosine

Formula: C11H13NO4

Molecular Weight: 223.23

CAS No.: 537-55-3

EINECS: 208-671-3

Density: 1.304 g/cm3

Melting Point: 149-152 °C(lit.)

Boiling Point: 531.3 °C at 760 mmHg

Flash Point: 275.1 °C



Item


Specification

Appearance


White crystals or crystalline powder

Specific Rotation[]D20


+46.5 to +49.0

State of solution


Clear and colorless

Not less than 96.0%

Chloride (Cl)


Not more than 0.020%

Ammonium (NH4)


Not more than 0.02%

Sulfate (SO4)


Not more than 0.020%

Iron (Fe)


Not more than 30ppm

Heavy Metals (Pb)


Not more than 10ppm

Aresenic (As2O3)


Not more than 2ppm

Loss on drying


Not more than 0.5%

Residue on ignition


Not more than 0.1%

Assay


99.0% to 101.0%

Tyrosine


Not more than 1.0%

pH


2.0 to 3.0

  CAS Registry Number:

60-18-4
  Synonyms: ;3-(4-Hydroxyphenyl)-L-alanine;H-Tyr-OH;L-tyrosine,99+% (98% ee/glc);L-tyrosine free base cell culture*tested;L-tyrosine plant cell culture tested;L-Tyrosine, Free Base;tyrosine usp;Tyr;Tyrosine,L- (8CI); (-)-a-Amino-p-hydroxyhydrocinnamicacid; (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid;(S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid; (S)-Tyrosine; (S)-a-Amino-4-hydroxybenzenepropanoicacid; 12: PN: US20090069547 PAGE: 10 claimed protein; 50: PN: WO2007067983SEQID: 199 unclaimed protein; 58: PN: US20040014159 SEQID: 33 unclaimedprotein; Benzenepropanoic acid, a-amino-4-hydroxy-, (S)-; L-(-)-Tyrosine; L-Phenylalanine, 4-hydroxy-;L-p-Tyrosine; NSC 82624; NSC 9973; Propanoic acid,2-amino-3-(4-hydroxyphenyl)-, (S)-; Tyrosine; p-Tyrosine
  Molecular Formula: C9H11NO3
  Molecular Weight: 181.19
  Molecular Structure: 60-18-4 L-Tyrosine
  Hazard Symbols:  Xi:Irritant;
  Risk Codes: R36/37/38:;
  Safety Description: S26:;
S36:;

  Company: Hebei Zhousheng Biological Technology CO., LTD         
  Contact: elaine
  Tel: 0311-86556681
  Fax: 0311-86556687
  Email: elaine@zsbiological.com
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