1217344-59-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217344-59-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,3,4 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1217344-59:
(9*1)+(8*2)+(7*1)+(6*7)+(5*3)+(4*4)+(3*4)+(2*5)+(1*9)=136
136 % 10 = 6
So 1217344-59-6 is a valid CAS Registry Number.
1217344-59-6Relevant articles and documents
Synthesis of 9-azolyl-3-(4-phenyl-4h-1,2,4-triazol-3-yl)-4h,8h-pyrano-[2,3- f]chromene-4,8-diones
Shokol,Lozinskii,Turov,Khilya
experimental part, p. 1089 - 1094 (2010/04/24)
The reaction of 6-ethyl-8-formyl-7-hydroxy-3-(4-phenyl-4H-1,2,4-triazol-3- yl)chromone with 2-azolyl-acetonitriles gave 8-iminopyrano[2,3-f]chromen-4-ones, whose acid hydrolysis led to pyrano-[2,3-f]chromene-4,8-diones containing azaheterocyclic substitue
