939892-94-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 939892-94-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,9,8,9 and 2 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 939892-94:
(8*9)+(7*3)+(6*9)+(5*8)+(4*9)+(3*2)+(2*9)+(1*4)=251
251 % 10 = 1
So 939892-94-1 is a valid CAS Registry Number.
939892-94-1Relevant academic research and scientific papers
Synthesis and structure of 4-arylspirodihydro-pyranochromen-2-one derivatives
Moskvina,Garazd,Garazd,Turov,Khilya
, p. 421 - 429 (2008/09/21)
Syntheses are reported for sulfur-and nitrogen-containing derivatives of 4-arylspiro-2-benzopyranones modified at the exocyclic oxygen atom. The structure of these products was demonstrated by correlational NMR spectroscopy.