Pharmaceutical Drug, 3- (4-Hydroxyphenyl) -D-Alanine, CAS: 556-02-5

• CAS No.: 556-02-5
• Formula: C9h11no3
• EINECS: 207-922-4
• Environmental Protection: No
• Certification: REACH
• Classification: Amino Acid
• Model NO.: Amino acid
• Function: Keeping Health and Promoting Growth
• Appearance: Powder
• Name: 3-(4-Hydroxyphenyl)-D-Alanine
• CAS: 556-02-5
• Molecular Weight: 181.19
• Melting Point: >300 °c(Lit.)
• Boiling Point: 385.2 °c at 760 Mmhg
• Flash Point: 186.7 °c
• Transport Package: 25kg/Drum
• Trademark: SWC
• Origin: China
• Production Capacity: 20kg/Month

Product Description

Product Name: 3-(4-Hydroxyphenyl)-D-alanine                  
CAS No.: 556-02-5

Formula: C9H11NO3
Synonyms: (R)-3-(p-Hydroxyphenyl)alanine;D-Tyrosin;(R)-2-Amino-3-(p-hydroxyphenyl)propionic acid;H-D-Tyr-OH;D-Tyrosine(556-02-5);

Usage:
D-Tyrosine, the stereoisomer to L-Tyrosine (T899975), is an amino acid used in various organic
syntheses for antibiotics. It is used in the synthesis of (-)-anisomycin, as well as BATSI (boronic acid transition state inhibitors) which act on β-lactamases. It has also been studied as an inhibitor of microbial growth on surfaces, reducing microbial attachment to hydrophillic glass and hydrophobic po lypropylene surfaces.

Item	Standard	Analysis data
Appearance	White crystals or crystalline powder	Conforms
Specific rotation[α]20/D (C=5,1mol/L HCL)	+11.0 to +12.1°	+11.4°
State of solution (Transmittance)	Clear and colorless Not less than 95.0%	96.0%
Chloride (Cl)	Not more than 0.020%	<0.020%
Ammonium (NH4)	Not more than 0.02%	<0.020%
Sulfate (SO4)	Not more than 0.020%	<0.020%
Iron (Fe)	Not more than 20ppm	<20ppm
Heavy metal(Pb)	Not more than 10ppm	<10ppm
Arsenic(As2O3)	Not more than 1ppm	<1ppm
Other amino acids	Chromatographically Not detectable	Conforms
Loss on drying	Not more than 0.20%	0.15%
Residue on ignition(sulfated)	Not more than 0.20%	0.1%
Assay	98.5 to102.0%	99.7%
pH	5.0 to 6.5	5.8

Frequently Asked Questions

Q1: May I get one sample before placing order? 

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