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170937-79-8

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170937-79-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170937-79-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,9,3 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 170937-79:
(8*1)+(7*7)+(6*0)+(5*9)+(4*3)+(3*7)+(2*7)+(1*9)=158
158 % 10 = 8
So 170937-79-8 is a valid CAS Registry Number.

170937-79-8Downstream Products

170937-79-8Relevant articles and documents

Synthetic elaboration of N-substituents in thioamides

Katritzky, Alan R.,Denisko, Olga,Lang, Hengyuan

, p. 8703 - 8710 (1995)

N-(Benzotriazol-1-ylmethyl)arylthioamides, readily prepared from arylthioamides, formaldehyde and benzotriazole, undergo lithiation followed by reactions with alkyl halides, aldehydes and ketones to introduce the expected N-substituents into the N-methylene group. Subsequent displacements of the benzotriazolyl group by Grignard reagents, alkoxide or thioalkoxide anions provide general access to a wide variety of N-substituted thioamides in good yields.

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