144648-12-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144648-12-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,6,4 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 144648-12:
(8*1)+(7*4)+(6*4)+(5*6)+(4*4)+(3*8)+(2*1)+(1*2)=134
134 % 10 = 4
So 144648-12-4 is a valid CAS Registry Number.
144648-12-4Relevant articles and documents
Synthesis of an allylic spiro-lactone
Gomes Constantino,Beltrame Jr.,De Medeiros,Da Silva
, p. 2859 - 2864 (1992)
A synthesis of an allylic spiro-lactone (1) is described. Compound 1 is obtained in 5 steps from dimedone with an overall yield of 8.8%. The main feature of the synthesis is the transformation of compound 3 in 1, which involves a water elimination accompa
