131226-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131226-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,2 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 131226-65:
(8*1)+(7*3)+(6*1)+(5*2)+(4*2)+(3*6)+(2*6)+(1*5)=88
88 % 10 = 8
So 131226-65-8 is a valid CAS Registry Number.
131226-65-8Relevant articles and documents
DIASTEREO- AND ENANTIOSELECTIVE SYNTHESIS OF α,α'-DISUBSTITUTED SPIROACETALS USING THE SAMP-/RAMP-HYDRAZONE METHOD
Enders, Dieter,Gatzweiler, Winfried,Dederichs, Eleonore
, p. 4757 - 4792 (1990)
α,α'-Disubstituted spiroacetals were synthesized with excellent enantiomeric excesses and in good overal yields from symmetrical ketones employing the SAMP-/RAMP-hydrazone-method for asymmetric α,α'-alkylation.