691871-06-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691871-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,7 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 691871-06:
(8*6)+(7*9)+(6*1)+(5*8)+(4*7)+(3*1)+(2*0)+(1*6)=194
194 % 10 = 4
So 691871-06-4 is a valid CAS Registry Number.
691871-06-4Relevant articles and documents
Enantiospecific construction of the BC-ring system of taxanes
Srikrishna,Dethe, Dattatraya H.,Kumar, P. Ravi
, p. 2939 - 2942 (2004)
Two alternative approaches to the BC-ring system of taxanes, suitable for generating both enantiomeric forms of taxanes, starting from the readily and abundantly available monoterpene (R)-carvone employing a ring-closing metathesis reaction as key step, are described.