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155777-20-1

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155777-20-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155777-20-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,7,7 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155777-20:
(8*1)+(7*5)+(6*5)+(5*7)+(4*7)+(3*7)+(2*2)+(1*0)=161
161 % 10 = 1
So 155777-20-1 is a valid CAS Registry Number.

155777-20-1Relevant articles and documents

Investigation on the reaction of 4-anilino-5-mercapto-s-triazoles with pyrazolines and barbituric acids

Chande, Madhukar S.,Bhandari, Jayesh D.,Joshi, Vishwas R.

, p. 1218 - 1228 (2007/10/02)

Synthesis of new 4-anilino-5-mercapto-3-substituted-1,2,4-triazoles (III) has been described.Reaction of III with 4,4-dibromo-substituted-pyrazolin-5-ones (VIII) affords 3,3'-substituted-5-phenyl-s-triazolothiadiazolidin-spiropyrazolin-5-ones

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