168778-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168778-68-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,7,7 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 168778-68:
(8*1)+(7*6)+(6*8)+(5*7)+(4*7)+(3*8)+(2*6)+(1*8)=205
205 % 10 = 5
So 168778-68-5 is a valid CAS Registry Number.
168778-68-5Relevant articles and documents
The total synthesis of taxamairin B
Wang,Pan,Zhang,Chen
, p. 3413 - 3419 (1995)
Taxamairin B, a novel rearranged 9 (10→20)-abeo-8,11,13-triene diterpene, has been synthesized by a short and efficient route. A friedal-Crafts annunation and the oxidation of the allylic and benzylic methene group are the key steps.
