20887-95-0 Usage
Chemical Properties
light yellowliquid
Uses
Boc-L-cysteine is the protected form of L-Cysteine (C995000), a non-essential α-amino acid that is biosynthesized in humans. L-Cysteine is also a bicarbonate-sensitive endogenous excitotoxin in rats and possibly humans.
Check Digit Verification of cas no
The CAS Registry Mumber 20887-95-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,8 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20887-95:
(7*2)+(6*0)+(5*8)+(4*8)+(3*7)+(2*9)+(1*5)=130
130 % 10 = 0
So 20887-95-0 is a valid CAS Registry Number.
InChI:InChI=1/C8H15NO4S/c1-8(2,3)13-7(12)9-5(4-14)6(10)11/h5,14H,4H2,1-3H3,(H,9,12)(H,10,11)
20887-95-0Relevant articles and documents
New Amino-protective Reagents for t-Butoxycarbonylation and Benzyloxycarbonylation of Amines and Amino Acids
Kim, Sunggak,Lee, Jae In,Yi, Kyu Yang
, p. 3570 - 3575 (2007/10/02)
New amino-protective reagents for t-butoxycarbonylation and benzyloxycarbonylation of amines and amino acids have been developed. t-Butyl 2-pyridyl carbonate and t-butyl S-(2-pyridyl) thiocarbonate react cleanly with various amines and amino acids to afford N-Boc amines and N-Boc amino acids in high yields.Benzyl 2-pyridyl carbonate and O-benzyl S-(2-pyridyl) thiocarbonate are also found to be very effective in the benzyloxycarbonylation of amino acids.
