136683-78-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136683-78-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,8 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 136683-78:
(8*1)+(7*3)+(6*6)+(5*6)+(4*8)+(3*3)+(2*7)+(1*8)=158
158 % 10 = 8
So 136683-78-8 is a valid CAS Registry Number.
136683-78-8Relevant articles and documents
Double dioxanone-to-dihydropyran reorganization. Construction of a C(1)-C(13) erythronolide template
Burke,Lee,Santafianos
, p. 3957 - 3960 (1991)
Convergent, stereoselective construction of the lactate-derived bis(dioxananone) 16 and two concurrent [3,3] sigmatropic transformations thereof results in the trienic bis(dihydropyran) 2, a potential precursor of the intact C(1)-C(13) erythronolide array.