163380-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163380-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,3,8 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 163380-33:
(8*1)+(7*6)+(6*3)+(5*3)+(4*8)+(3*0)+(2*3)+(1*3)=124
124 % 10 = 4
So 163380-33-4 is a valid CAS Registry Number.
163380-33-4Relevant articles and documents
Suitability of the Claisen ring expansion protocol for crenulide diterpene construction
Paquette,Ezquerra,He
, p. 1435 - 1447 (2007/10/02)
An enantiospecific synthesis of optically pure 2, a molecule possessing the ring system characteristic of the crenulide diterpenes, is reported. The nine-step sequence began with the previously described R lactone 6. The early bond-forming reactions inclu
