293731-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 293731-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,3,7,3 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 293731-05:
(8*2)+(7*9)+(6*3)+(5*7)+(4*3)+(3*1)+(2*0)+(1*5)=152
152 % 10 = 2
So 293731-05-2 is a valid CAS Registry Number.
293731-05-2Relevant academic research and scientific papers
Sulfonamidoacetal cyclization-based synthesis of a tetrahydrooxazaphenalenelactone related to the ABC-ring system of the stephaoxocanes
Kaufman, Teodoro S.
, p. 323 - 330 (2007/10/03)
The elaboration of a tetrahydrooxazaphenalenelactone embodying the ABC-ring system of the stephaoxocanes, by means of Jackson's sulfonamidoacetal cyclization as the isoquinoline ring-forming strategy, is reported.
