138253-34-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138253-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,5 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138253-34:
(8*1)+(7*3)+(6*8)+(5*2)+(4*5)+(3*3)+(2*3)+(1*4)=126
126 % 10 = 6
So 138253-34-6 is a valid CAS Registry Number.
138253-34-6Relevant articles and documents
Synthesis of phoracantholide I based on stereospecific fragmentation reactions
Nagumo,Suemune,Sakai
, p. 5585 - 5588 (1991)
Phoracantholide I was synthesized on the basis of silica gel-catalyzed fragmentation to the ring-enlarged lactones.