149281-64-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149281-64-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,2,8 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 149281-64:
(8*1)+(7*4)+(6*9)+(5*2)+(4*8)+(3*1)+(2*6)+(1*4)=151
151 % 10 = 1
So 149281-64-1 is a valid CAS Registry Number.
InChI:InChI=1/C14H11BrO4/c1-8-3-5-9(6-4-8)11-7-10(16)13(19-11)12(15)14(17)18-2/h3-7H,1-2H3/b13-12-
149281-64-1Relevant articles and documents
Reactions of 5-aryl-furan-2,3-diones with acylmethylenetriphenylphosphoranes: Synthesis and biological activity of 3(2H)-furanone derivatives
Kozminykh,Igidov,Kozminykh,Aliev
, p. 99 - 106 (2007/10/02)
The Wittig reaction of 5-aryl-furan-2,3-diones 1 with acylmethylenetriphenylphosphoranes 2 conducted by heating under reflux in benzene solutions, proceeded regiospecifically to afford 2-acylmethylene-5-aryl-3(2H)-furanones 5 in good yields. When the star
