157639-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157639-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,3 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157639-71:
(8*1)+(7*5)+(6*7)+(5*6)+(4*3)+(3*9)+(2*7)+(1*1)=169
169 % 10 = 9
So 157639-71-9 is a valid CAS Registry Number.
157639-71-9Relevant articles and documents
Synthesis of 5a-Carba-&β-D-glycosylceramide Analogs Linked by Imino, Ether and Sulfide Bridges
Tsunoda, Hidetoshi,Ogawa, Seiichiro
, p. 267 - 278 (2007/10/02)
Carbocyclic analogs of glycoceramides, (2S,3R,4E)-1-(5a-carba-β-D-glycopyranosyl)-2-(hexadecanoylamino)-4-octadecen-3-ols E-3 - E-6, linked by imino, ether and sulfide bridges, were synthesized by coupling of aziridines, as the sphingosine precursors, wit
