142657-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142657-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,5 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 142657-34:
(8*1)+(7*4)+(6*2)+(5*6)+(4*5)+(3*7)+(2*3)+(1*4)=129
129 % 10 = 9
So 142657-34-9 is a valid CAS Registry Number.
142657-34-9Relevant academic research and scientific papers
Glycosyl Imidates, 56. Synthesis of the Hexasaccharide Moiety of Pectinoside E
Jiang, Zi-Hua,Schmidt, Richard R.
, p. 975 - 982 (2007/10/02)
The synthesis of the hexasaccharide moiety 2 of pectinioside E (1), isolated from the whole bodies of the starfish Asterina pectinifera Mueller et Troschel, is described.Building block 4 was prepared by a six-step procedure from D-glucose.A reasonable yie
