74919-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74919-03-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,1 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74919-03:
(7*7)+(6*4)+(5*9)+(4*1)+(3*9)+(2*0)+(1*3)=152
152 % 10 = 2
So 74919-03-2 is a valid CAS Registry Number.
74919-03-2Relevant articles and documents
Synthesis of Some 4-Phenylisocoumarins
Sarkhel, B. K.,Srivastava, Jagdish N.
, p. 158 - 159 (2007/10/02)
Appropriately substituted benzoic acids (Ia-Ij) on treatment under reflux with 1-bromoacetophenone and potassium carbonate in the presence of very small quantity of water yield the corresponding benzoylmethyl benzoates (IIa-j), which undergo cyclization w