109917-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109917-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,1 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109917-95:
(8*1)+(7*0)+(6*9)+(5*9)+(4*1)+(3*7)+(2*9)+(1*5)=155
155 % 10 = 5
So 109917-95-5 is a valid CAS Registry Number.
109917-95-5Relevant academic research and scientific papers
Chiral Oxabicyclic Systems from Ribonolactone
Drew, Michael G. B.,Mann, John,Thomas, Alison
, p. 2279 - 2286 (2007/10/02)
We describe the synthesis of (-)-5-O-diphenyl-t-butylsiloxymethyl-5H-furan-2-one (4) from D-ribonolactone; conversion of this chiral butenolide into (+)-(1R,6S,7S)-7-diphenyl-t-butylsiloxymethyl-8-oxabicyclonon-3-en-9-one (10) (by means of a Diels-
