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149490-99-3

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149490-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149490-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,4,9 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 149490-99:
(8*1)+(7*4)+(6*9)+(5*4)+(4*9)+(3*0)+(2*9)+(1*9)=173
173 % 10 = 3
So 149490-99-3 is a valid CAS Registry Number.

149490-99-3Downstream Products

149490-99-3Relevant articles and documents

Reaction of Aromatic Ketones with 3-Mercapto-1,2-propanediol. Synthesis of cis- and trans-2-Alkyl-2-aryl-(1,3-oxathiolane-5-methanols and 1,3-dioxolane-4-methanethiols)

Upadhyaya, Subhash,Bauer, Ludwig

, p. 1053 - 1065 (2007/10/02)

Aromatic ketones react with 3-mercapto-1,2-propanediol (1) in refluxing benzene under the catalytic influence of sulfonic acid and with azeotropic removal of water to yield a mixture comprised predominantly of cis- and trans-2-alkyl-2-aryl-1,3-oxathiolane

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