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75590-65-7

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75590-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75590-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,5,9 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75590-65:
(7*7)+(6*5)+(5*5)+(4*9)+(3*0)+(2*6)+(1*5)=157
157 % 10 = 7
So 75590-65-7 is a valid CAS Registry Number.

75590-65-7Downstream Products

75590-65-7Relevant articles and documents

SIMPLE METHOD FOR THE PREPARATION OF 1-SUBSTITUTED ISATINS

Radul, O. M.,Zhungietu, G. I.,Rekhter, M. A.,Bukhanyuk, S. M.

, p. 286 - 288 (1983)

The use of potassium carbonate in dimethylformamide (DMF) makes it possible to carry out the N-alkylation of isatins with alkyl bromides and iodides and acyl chlorides at room temperature and with alkyl chlorides at elevated temperatures (70-80 deg C) without ring opening.The previously inaccesible N-(2-chloroethyl)isatins were obtained by alkylation of isatin with 1,2-dichloroethane.The condensation of isatins with 1,3-dichloro-2-butene takes place only at the chlorine atom in allyl position of the latter.

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