73097-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73097-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,9 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73097-21:
(7*7)+(6*3)+(5*0)+(4*9)+(3*7)+(2*2)+(1*1)=129
129 % 10 = 9
So 73097-21-9 is a valid CAS Registry Number.
73097-21-9Relevant academic research and scientific papers
An efficient synthesis of furanocoumarins
Zubia,Luis,Massanet,Collado
, p. 4239 - 4246 (2007/10/02)
An efficient synthesis of linear and angular furanocoumarins has been carried out starting from iodoumbelliferone derivatives. First synthesis of 6-iodoumbelliferone is described. The average yields are higher than those reported before.
