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Protected Amino acid
CBZ-D-Phenylglycine 17609-52-8 BOC-4-Amino-L-phenylalanine 55533-24-9
CBZ-Glu-Obzl 65706-99-2 BOC-Asp(OBzl)-OH 7536-58-5
CBZ-L-Alanine 1142-20-7 BOC-L-Glutamine 13726-85-7
CBZ-L-Asparagine 2304-96-3 BOC-Glycine 4530-20-5
CBZ-L-Phenylalanine 1161-13-3 BOC-L-Phenylalanine 13734-34-4
CBZ-L-Phenylglycine 53990-33-3 BOC-L-Pyroglutamic acid tert-butyl ester 91237-84-2
CBZ-L-Valine 1149-26-4 FMOC-Glycine 29022-11-5
BOC-BETA-Alanine 3303-84-2 FMOC-L-Alanine 35661-39-3
BOC-D-Alanine 7764-95-6    

Coupling Reagent
TSTU 105832-38-0 TOTU 136849-72-4
HCTU 330645-87-9 TCTU 330641-16-2
TBTU 125700-67-6 HBTU 125700-67-6
HATU 148893-10-1 HOAT 39968-33-7
TDBTU (Under development) 125700-69-8 HOOBT (Under development) 28230-32-2

CBZ-L-Valine (Z-Val-OH) N-Benzyloxycarbonyl-L-valine CBZ-L-Valine
CAS Number: 1149-26-4
Appearance White to off-white powder
Specific rotation (C=1, Methanol) -4.0 ~ -5.0 degrees
Melting point 55 ~ 60 degrees C
Water Not more than 0.5%
Valine Not more than 0.1%
D-Isomer Not more than 0.5%
Benzyl alcohol Not more than 0.5%
TLC Analysis Should be one point
Assay Not less than 98.5%

BOC-L-Phenylalanine (Z-Phe-OH) N-tert-Butyloxycarbonyl-L-phenylalanine BOC-L-Phenylalanine
CAS Number: 13734-34-4
Appearance White to off-white powder
Specific rotation (C=1, Ethanol) +23.0 ~ +25.0 degrees
Single impurity (by HPLC) Not more than 0.5%
Total impurities (by HPLC) Not more than 1.0%
Loss on drying Not more than 0.5%
Assay (by HPLC) Not less than 98.5%

 



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