136339-33-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136339-33-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,3,3 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136339-33:
(8*1)+(7*3)+(6*6)+(5*3)+(4*3)+(3*9)+(2*3)+(1*3)=128
128 % 10 = 8
So 136339-33-8 is a valid CAS Registry Number.
136339-33-8Relevant academic research and scientific papers
Crandall,Ayers
, p. 3659 - 3662 (1991)
Substitution of P(O)Ph2, SOPh, and SO2Ph on an allene facilitates intramolecular radical addition to the central allene carbon to provide good yields of five-, six-, and seven-membered carbocycles.
