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1233402-94-2

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1233402-94-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233402-94-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,4,0 and 2 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1233402-94:
(9*1)+(8*2)+(7*3)+(6*3)+(5*4)+(4*0)+(3*2)+(2*9)+(1*4)=112
112 % 10 = 2
So 1233402-94-2 is a valid CAS Registry Number.

1233402-94-2Downstream Products

1233402-94-2Relevant articles and documents

Synthesis of a few cyclothiadiazanones and aminosulfonyl benzamides from saccharin

Ramana, P. Venkata,Reddy, A. Ram

experimental part, p. 71 - 81 (2010/10/04)

Saccharin is hydrolyzed with two different acids to yield 1,2-di-acid. The di-acid, on chlorination with phosphorous pentachloride, gave 2-chlorosulfonylbenzoyl chloride. The 2-chlorosulfonylbenzoyl chloride on hydrazinolysis gave benzothiadiazinetrione, while with phenyl hydrazine it selectively yielded 2-phenylbenzothiadiazinetrione. 2-chlorosulfonoylbenzoyl chloride with different aromatic 1,2- diamines resulted in dibenzothiadiazocine derivatives. Electron-donating groups in the diamine facilitate while the electron-withdrawing groups retard the cyclization. However, aliphatic diamines, aniline and substituted anilines readily gave acyclic aminosulfonyl carboxybenzamides on condensation with 2- chlorosulfonylbenzoyl chloride. The di-acid and anhydride did not react with either hydrazine/phenyl hydrazine or amines to give the above products. However, when its ester derivative, isopropyl-2- chlorosulfonylbenzoate, condensed with hydrazine, it gave benzothiadiazinetrione. But the ester failed to react with phenyl hydrazine. All the condensation reactions were carried out at room temperature.

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