57738-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57738-75-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57738-75:
(7*5)+(6*7)+(5*7)+(4*3)+(3*8)+(2*7)+(1*5)=167
167 % 10 = 7
So 57738-75-7 is a valid CAS Registry Number.
57738-75-7Relevant articles and documents
Thioketene Syntheses, VI. Stable Thioketenes via Thionation of Sterically Hindered Acyl Chlorides
Schaumann, Ernst
, p. 2755 - 2765 (2007/10/02)
Sterically hindered acyl chlorides 11 are accessible via alkylation of the ester 1 or via chain elongation of the ketones 4 by one carbon atom in practicable, though multi-step reaction sequences.Action of phosphorus pentasulfide/pyridine on 11 leads to t
