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638133-22-9

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638133-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 638133-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,3 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 638133-22:
(8*6)+(7*3)+(6*8)+(5*1)+(4*3)+(3*3)+(2*2)+(1*2)=149
149 % 10 = 9
So 638133-22-9 is a valid CAS Registry Number.

638133-22-9Relevant articles and documents

2-Silyloxy-1,2-oxazines, a New Type of Acetals of Conjugated Nitroso Alkenes

Tishkov, Alexander A.,Lesiv, Alexey V.,Khomutova, Yulya A.,Strelenko, Yury A.,Nesterov, Ivan D.,Antipin, Michael Yu.,Ioffe, Sema L.,Denmark, Scott E.

, p. 9477 - 9480 (2007/10/03)

3-Alkyl-substituted 1,2-oxazine N-oxides 2 can be selectively transformed into 2-silyloxy-1,2-oxazines 1 upon treatment with silylating reagents. In the solid state derivatives 1 adopt a chair conformation with the pyramidal nitrogen atom, whereas in solu

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