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261505-72-0

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261505-72-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 261505-72-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,5,0 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 261505-72:
(8*2)+(7*6)+(6*1)+(5*5)+(4*0)+(3*5)+(2*7)+(1*2)=120
120 % 10 = 0
So 261505-72-0 is a valid CAS Registry Number.

261505-72-0Relevant articles and documents

Thermal Cyclization of 3-Acyl-4-azidopyridines to Isoxazolo[4,3-c]pyridines

Stadlbauer, Wolfgang,Fiala, Werner,Fischer, Michaela,Hojas, Gerhard

, p. 33 - 39 (2007/10/03)

4-Azidopyridines such as 3-acetyl-4-azido-2-pyridones 3 or 4-azido-3-ethoxycarbonylpyridine 7 with reactive ortho-acyl substituents were obtained from the 4-hydroxy-2-pyridones 1, resp. 5 via 4-tosyloxy-2-pyridones 2 or the 2,4-dichloropyridine 6. DSC-ass

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