133527-28-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133527-28-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,2 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133527-28:
(8*1)+(7*3)+(6*3)+(5*5)+(4*2)+(3*7)+(2*2)+(1*8)=113
113 % 10 = 3
So 133527-28-3 is a valid CAS Registry Number.
133527-28-3Relevant articles and documents
SYNTHESIS OF N-SUBSTITUTED PYRROLES FROM 1-R-3-R1-3,4-DICHLOROBUTANONES
Mamedov, E. I.,Ismailov, A. G.,Ibragimov, V. G.,Bairamov, G. M.
, p. 984 - 987 (2007/10/02)
Reaction of acyl chlorides or methallyl chlorides in the present of aluminium chloride gives 1-R-3-R1-3,4-dichlorobutanones which give 1,2- and 1,2,4-substituted pyrroles with ethanolamine.The dichlorobutanones react with glycine and α-alanine