33853-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33853-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,5 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33853-91:
(7*3)+(6*3)+(5*8)+(4*5)+(3*3)+(2*9)+(1*1)=127
127 % 10 = 7
So 33853-91-7 is a valid CAS Registry Number.
33853-91-7Relevant articles and documents
A short route to furanosesquiterpenes using a new siloxyfuran building block. The synthesis of freelingnite and dehydrolasiosperman
Jefford,Sledeski,Rossier,Boukouvalas
, p. 5741 - 5744 (2007/10/02)
The utility of 2-(tert-butyldimethylsiloxy)-3-methylfuran for the regioselective assembly of furanosesquiterpenes is demonstrated by the syntheses of (±)-freelingnite and dehydrolasiosperman.