27980-44-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27980-44-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,8 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 27980-44:
(7*2)+(6*7)+(5*9)+(4*8)+(3*0)+(2*4)+(1*4)=145
145 % 10 = 5
So 27980-44-5 is a valid CAS Registry Number.
27980-44-5Relevant articles and documents
Photolysis of dibenzo[a,d]cycloheptene dimer
Chang, Meng-Yang,Huang, Yu-Ping
, p. 632 - 638 (2013/10/22)
Photolysis reaction of dibenzo[a,d]cycloheptene dimer 3 provides three dibenzo[a,d]cycloheptyl dimmers 4, 5 and 6 under different irradiation conditions via the intramolecular degradative cyclodimerization. A tetracyclic benzo[4,5]cyclohepta[1,2,3-de]naphthalene core is also synthesized.
