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402954-62-5

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402954-62-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402954-62-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,5 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 402954-62:
(8*4)+(7*0)+(6*2)+(5*9)+(4*5)+(3*4)+(2*6)+(1*2)=135
135 % 10 = 5
So 402954-62-5 is a valid CAS Registry Number.

402954-62-5Upstream product

402954-62-5Relevant articles and documents

The Radziszewski oxidation of cycloalkylidene-α-(thiazol- 2-yl)acetonitriles: A new approach toward spirooxiranes

Dotsenko, Victor V.,Krivokolysko, Sergey G.,Litvinov, Victor P.

, p. 162 - 167 (2011)

Upon treatment with H2O2/KOH in EtOH or with Na 2CO3/H2O2 in acetone, cycloalkylidene-α-(4-arylthiazol-2-yl)acetonitriles afforded 2-(4-arylthiazol-2-yl)-1-oxaspiro[2.5]octane-2-carboxamides and 2-(4-arylthiazol-2-yl)-1-oxaspiro[2.4]heptane-2-carboxamides in excellent yields (76-100%).

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