145543-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145543-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,5,4 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 145543-23:
(8*1)+(7*4)+(6*5)+(5*5)+(4*4)+(3*3)+(2*2)+(1*3)=123
123 % 10 = 3
So 145543-23-3 is a valid CAS Registry Number.
145543-23-3Relevant articles and documents
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Bestmann,Pohlschmidt,Kumar
, p. 5955 - 5958 (2007/10/02)
Starting from acylalkylidenetriphenylphosphoranes 1 the corresponding thioacylalkylidenetriphenylphosphoranes 4 have been synthesized via the triflates 3 and converted into the salts 8. Some spectroscopic data of the new compounds are discussed.