134835-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134835-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,3 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134835-39:
(8*1)+(7*3)+(6*4)+(5*8)+(4*3)+(3*5)+(2*3)+(1*9)=135
135 % 10 = 5
So 134835-39-5 is a valid CAS Registry Number.
134835-39-5Relevant articles and documents
Synthesis of methyl 2-aryloxy-4-methyl-4-pentenoates and 2-aryloxy-4-methyl-4-pentenals
Fechtel,Westphal,Ruger,Matschiner
, p. 399 - 401 (2007/10/02)
A convenient procedure for the preparation of the title compounds from 1,1,1-trichloro-4-methyl-4-penten-2-ol (1) and 1,1-dichloro-4-methyl-4-penten-2-ol (8), respectively, by treatment with unsubstituted and substituted sodium phenolates 5 is described.
