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

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
Trademark: SWC
Transport Package: 25kg/Drum
Origin: China
CAS No.: 556-02-5
Formula: C9h11no3
EINECS: 207-922-4
Environmental Protection: No
Certification: REACH
Classification: Amino Acid



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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

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