Cas 1021187-16-5,2-methyl-5-nitrothiophene S-oxide

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Check Digit Verification of cas no

The CAS Registry Mumber 1021187-16-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,1,8 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1021187-16:
(9*1)+(8*0)+(7*2)+(6*1)+(5*1)+(4*8)+(3*7)+(2*1)+(1*6)=95
95 % 10 = 5
So 1021187-16-5 is a valid CAS Registry Number.

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1021187-16-5Relevant articles and documents

Synthesis of dinitro-substituted furans, thiophenes, and azoles

Katritzky, Alan R.,Vakulenko, Anatoliy V.,Sivapackiam, Jothilingam,Draghici, Bogdan,Damavarapu, Reddy

, p. 699 - 706 (2008)

Direct nitration of the corresponding mononitro furans with fuming nitric acid, thiophenes with acetyl nitrate, and thiazoles with trifluoroacetyl nitrate, gave dinitro-substituted furans, thiophenes, and thiazoles. The nitrations of 2-alkylthiophenes wit

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1021187-16-5