141882-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141882-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,8,8 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 141882-63:
(8*1)+(7*4)+(6*1)+(5*8)+(4*8)+(3*2)+(2*6)+(1*3)=135
135 % 10 = 5
So 141882-63-5 is a valid CAS Registry Number.
141882-63-5Relevant articles and documents
Methyl (E)-4-chloro-3-methoxy-2-butenoate: An extremely versatile four carbon building block
Duc,McGarrity,Meul,Warm
, p. 391 - 394 (2007/10/02)
Methyl (E)-4-chloro-3-methoxy-2-butenoate (3a) is inexpensively prepared from methyl 4-chloroacetoacetate using thionyl chloride and methanol on an industrial scale. Many nucleophilic substitution reactions of chloride, which are impossible with the unpro
