139224-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139224-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,2 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139224-81:
(8*1)+(7*3)+(6*9)+(5*2)+(4*2)+(3*4)+(2*8)+(1*1)=130
130 % 10 = 0
So 139224-81-0 is a valid CAS Registry Number.
139224-81-0Relevant articles and documents
A Novel Transthioacetalisation: A Simple, Non-aqueous, Irreversible Transformation
Ravindranathan, T.,Chavan, Subhash P.,Tejwani, Rajkumar B.,Varghese, Jos P.
, p. 1750 - 1751 (1991)
Thioacetals derived from ketones and aldehydes have been shown to undergo CF3SO3SiMe3 or CF3SO3SiButMe2 catalysed sulphur transfer in the presence of an aldehyde to give the corresponding carbonyl compounds at room temperature.
