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126940-55-4

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126940-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126940-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,4 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 126940-55:
(8*1)+(7*2)+(6*6)+(5*9)+(4*4)+(3*0)+(2*5)+(1*5)=134
134 % 10 = 4
So 126940-55-4 is a valid CAS Registry Number.

126940-55-4Downstream Products

126940-55-4Relevant articles and documents

A novel one-pot synthesis of substituted 5-benzoyl- and 5-acetylamino-1H,6H-pyranopyrazolones

Ahluwalia, Vinod K.,Garg, Vijay K.,Sharma, Mukesh K.,Sharma, R.

, p. 960 - 962 (2007/10/02)

A convenient one-pot synthesis of some 5-benzoyl- and 5-acetylamino-1H,6H-pyranopyrazolones (4) by the reaction of 2-pyrazolin-5-ones (1) with hippuric/aceturic acid and triethyl orthoformate in the presence of acetic anhydride, in good yield (75-8

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