129944-69-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129944-69-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,4 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129944-69:
(8*1)+(7*2)+(6*9)+(5*9)+(4*4)+(3*4)+(2*6)+(1*9)=170
170 % 10 = 0
So 129944-69-0 is a valid CAS Registry Number.
129944-69-0Relevant articles and documents
Facile Retro Diels-Alder Reaction of a Pentamethyltricyclo2,6>decenone Derivative: Synthesis of (+)-15(S)-Prostaglandin A2
Grieco, Paul A.,Abood, Norman
, p. 410 - 412 (1990)
The incorporation of methyl groups into the C(1), C(7), C(8), C(9), and C(10) positions of tricyclo2,6>decenone (1) dramatically accelerates the retro Diels-Alder reaction of (3) under Lewis acid catalysis thus permitting access to synt