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70989-48-9

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70989-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70989-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,8 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70989-48:
(7*7)+(6*0)+(5*9)+(4*8)+(3*9)+(2*4)+(1*8)=169
169 % 10 = 9
So 70989-48-9 is a valid CAS Registry Number.

70989-48-9Relevant articles and documents

Cyanic Acid Esters. 29. Bezoxazoline-thione-N-imid Esters and Their Consecutive Reactions

Martin, D.,Wenzel, A.

, p. 253 - 260 (2007/10/02)

Oxazoline-thiones-(2) and aryl cyanates react to form the corresponding isoureas 4.These compounds are remarkably stable against electrophilic reagents.The aminolysis of 4 proceeds two pathwais: a transformation of the imid ester residue to the amin and a ring opening reaction by attack of the amin to the C=S-bond.The hydrazinolysis causes a ring-transformation of the oxazoline- to the 1,3,4-triazole systems.

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