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1369761-90-9

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1369761-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1369761-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,6,9,7,6 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1369761-90:
(9*1)+(8*3)+(7*6)+(6*9)+(5*7)+(4*6)+(3*1)+(2*9)+(1*0)=209
209 % 10 = 9
So 1369761-90-9 is a valid CAS Registry Number.

1369761-90-9Relevant articles and documents

Efficient synthesis of 5′-fluoroalkoxythiazoles via α-bromo-α-fluoroalkoxyacetophenones Hantzsch type cyclization with thioureas or thioamides

Sokolenko, Taras M.,Davydova, Yulia A.,Yagupolskii, Yurii L.

, p. 20 - 25 (2012/06/30)

Novel α-fluoroalkoxyacetophenones were synthesized by addition of the readily available 2,2-dimethoxy-2-phenylethanol to fluoroolefins. α-Bromination yielded α-bromo-α-fluoroalkoxyacetophenones, which on treatment with thioureas or thioamides gave thiazoles with fluoroalkoxy groups at the 5′-position by the Hantzsch-type cyclization. This provides a versatile methodology for the construction of heterocycles from aliphatic fluoroalkoxy containing building blocks.

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