266318-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 266318-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,6,3,1 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 266318-68:
(8*2)+(7*6)+(6*6)+(5*3)+(4*1)+(3*8)+(2*6)+(1*8)=157
157 % 10 = 7
So 266318-68-7 is a valid CAS Registry Number.
266318-68-7Relevant articles and documents
The first total synthesis of annonacin, the most typical monotetrahydrofuran annonaceous acetogenins.
Hu,Wu,Wu
, p. 887 - 889 (2000)
The first total synthesis of annonacin (1) was achieved by a highly convergent synthetic strategy. All the stereogenic centers were derived from three natural hydroxy acids respectively, except that those at C19 and C20 were produced from a Sharpless AD reaction.