135248-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135248-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,4 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 135248-68:
(8*1)+(7*3)+(6*5)+(5*2)+(4*4)+(3*8)+(2*6)+(1*8)=129
129 % 10 = 9
So 135248-68-9 is a valid CAS Registry Number.
135248-68-9Relevant articles and documents
Facile synthesis of (+)-Brefeldin A
Nokami,Ohkura,Dan-Oh,Sakamoto
, p. 2409 - 1412 (1991)
(+)-Brefeldin A (1) was synthesized by using (+)-4-cyanomethylcyclopent-2-en-1-one (2) as a key compound. 4-Hydroxy-2-enoate functionality was built by the reaction of the aldehyde (7) with (S)-ethyl p-chlorophenylsulfinylacetate.
