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143675-90-5

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143675-90-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143675-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,7 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143675-90:
(8*1)+(7*4)+(6*3)+(5*6)+(4*7)+(3*5)+(2*9)+(1*0)=145
145 % 10 = 5
So 143675-90-5 is a valid CAS Registry Number.

143675-90-5Downstream Products

143675-90-5Relevant articles and documents

Oxidative conversion of aldoximes into carboxylic acid esters

Said,Skarzewski,Mlochowski

, p. 1851 - 1862 (1992)

Aromatic and aliphatic aldoximes or their O-methyl ethers can be efficiently converted into the corresponding carboxylic acid esters by treatment with an alcoholic solution of 30% hydrogen peroxide in the presence of catalytic amounts of 2-nitrobenzeneseleninic acid. Primary alcohols give excellent to good yields, secondary ones - good to moderate, but with tertiary alcohols no esterification is observed.

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