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4433-55-0

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4433-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4433-55-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,3 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4433-55:
(6*4)+(5*4)+(4*3)+(3*3)+(2*5)+(1*5)=80
80 % 10 = 0
So 4433-55-0 is a valid CAS Registry Number.

4433-55-0Relevant articles and documents

A synthetic method to access symmetric and non-symmetric 2-(N,N'-disubstituted)guanidinebenzothiazoles

Cruz, Alejandro,Padilla-Martinez, Itzia I.,Garcia-Baez, Efren V.

, p. 10178 - 10191,14 (2020/09/09)

Symmetric and non-symmetric 2-(N-H, N-methyl, N-ethylenyl and N-aryl)guanidinebenzothiazoles were synthesized from the reaction of ammonia, methylamine, pyrrolidine and aniline with dimethyl benzo[d]thiazol-2-yl- carbonodithioimidate (5) as intermediate. The products were characterized by 1H-, 13C-NMR spectroscopy and three of them by X-ray diffraction analysis. HN-phenyl protons formed intramolecular hydrogen bonds that assist the stereochemistry of the second substituent, whereas the HN-alkyl protons were involved in intermolecular hydrogen bonding.

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