3215-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3215-28-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,1 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 3215-28:
(6*3)+(5*2)+(4*1)+(3*5)+(2*2)+(1*8)=59
59 % 10 = 9
So 3215-28-9 is a valid CAS Registry Number.
3215-28-9Relevant articles and documents
A NOVEL SYNTHETIC ROUTE TO 2-ARYL-2H-BENZOTRIAZOLE 1-OXIDES
Niclas, H.-J.,Goehrmann, B.
, p. 2141 - 2150 (2007/10/02)
The reaction of benzofuroxan 1 with sodium or potassium salts of formanilides 2 affords 2-aryl-2H-benzotriazole 1-oxides 3 in moderate to good yields.By heating the reactants in toluene or DMSO formal O/N exchange with elimination of alkali formate takes
