144153-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144153-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,1,5 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144153-29:
(8*1)+(7*4)+(6*4)+(5*1)+(4*5)+(3*3)+(2*2)+(1*9)=107
107 % 10 = 7
So 144153-29-7 is a valid CAS Registry Number.
144153-29-7Relevant academic research and scientific papers
Synthesis of 1,2-thiazines and 1,2-thiazepines by ring expansion
Stachel,Poschenrieder,Lomitzky
, p. 461 - 464 (2007/10/02)
The β-ketosultames 3 and 11 are transformed by aldol condensation into the corresponding alkylidene derivatives 4, 5 and 12. Epoxidation of 5 and 12 leads to the epoxyketones 6 and 13 which isomerize by boron trifluoride etherate to 1,2-thiazine 7 and 1,2
