57748-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57748-39-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,4 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57748-39:
(7*5)+(6*7)+(5*7)+(4*4)+(3*8)+(2*3)+(1*9)=167
167 % 10 = 7
So 57748-39-7 is a valid CAS Registry Number.
57748-39-7Relevant articles and documents
Clemmensen Reduction. XI. Fragmentation Reactions of Some 3-Acetylcycloalkanones
Bailey, Karen E.,Davis, Brian R.
, p. 1827 - 1834 (2007/10/03)
Clemmensen reduction of a series of 3-acetylcycloalkanones yields, as the major product, an acyclic unsaturated ketone, the product of fragmentation.Some normal carbonyl-methylene reduction also occurs.A mechanistic rationale for the fragmentation is advanced.
