66402-44-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66402-44-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,0 and 2 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66402-44:
(7*6)+(6*6)+(5*4)+(4*0)+(3*2)+(2*4)+(1*4)=116
116 % 10 = 6
So 66402-44-6 is a valid CAS Registry Number.
66402-44-6Relevant articles and documents
Tandem Michael-Wittig-Horner reaction: Application to the synthesis of bisabolanes
Chuzel, Olivier,Piva, Olivier
, p. 393 - 402 (2003)
Bisabolane derivatives have been synthesized from para-substituted cinnamaldehydes according to a tandem Michael - Wittig - Horner reaction. This sequence was applied to a short access to (+/-)-ar-turmerone.