71989-25-8 Usage
Chemical Properties
Off-white powder
Check Digit Verification of cas no
The CAS Registry Mumber 71989-25-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,8 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71989-25:
(7*7)+(6*1)+(5*9)+(4*8)+(3*9)+(2*2)+(1*5)=168
168 % 10 = 8
So 71989-25-8 is a valid CAS Registry Number.
InChI:InChI=1/C27H26N2O6/c1-17(2)15-25(26(30)35-19-13-11-18(12-14-19)29(32)33)28-27(31)34-16-24-22-9-5-3-7-20(22)21-8-4-6-10-23(21)24/h3-14,17,24-25H,15-16H2,1-2H3,(H,28,31)
71989-25-8Relevant articles and documents
Active Esters of 9-Fluorenylmethyloxycarbonyl Amino Acids and Their Application in the Stepwise Lengthening of a Peptide Chain
Bodanszky, Agnes,Bodanszky, Miklos,Chandramouli, Nagarajan,Kwei, Joseph Z.,Martinez, Jean,Tolle, John C.
, p. 72 - 76 (2007/10/02)
Preparation and properties of p-nitrophenyl esters of several 9-fluorenylmethyloxycarbonyl (Fmoc) amino acids are described.The Fmoc derivatives of the hindered amino acids valine and isoleucine were converted to the more reactive o-nitrophenyl esters whi