128970-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128970-31-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128970-31:
(8*1)+(7*2)+(6*8)+(5*9)+(4*7)+(3*0)+(2*3)+(1*1)=150
150 % 10 = 0
So 128970-31-0 is a valid CAS Registry Number.
128970-31-0Relevant articles and documents
α-Trifluormethyl Substituted Amino Acids with Alkyne Functions in the Side Chain
Burger, Klaus,Sewald, Norbert
, p. 115 - 118 (2007/10/02)
Starting from trifluoro pyruvates and terminal alkynes a simple preparative procedure for synthesis of α-trifluoromethyl substituted acetylenic α-amino acids and α,ω-diamino dicarboxylic acids is described.The triple bond in the side chain can be function