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433233-94-4

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433233-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 433233-94-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,2,3 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 433233-94:
(8*4)+(7*3)+(6*3)+(5*2)+(4*3)+(3*3)+(2*9)+(1*4)=124
124 % 10 = 4
So 433233-94-4 is a valid CAS Registry Number.

433233-94-4Relevant articles and documents

New amidino-benzimidazolyl derivatives of tylosin and desmycosin

Hranjec, Marijana,Starcevic, Kristina,Zamola, Branimir,Mutak, Stjepan,Derek, Marko,Karminski-Zamola, Grace

, p. 308 - 314 (2007/10/03)

New amidino-benzimidazolyl derivatives of antibiotics tylosin and desmycosin are prepared in the reaction of corresponding amidino-substituted o-phenylendiamine with tylosin respectively desmyicosin on the 20-C aldehyde group. The reaction was carried out in absolute ethanol in the presence of p-benzoquinone. On this way are prepared: 20-[5-(N-isopropylamidino)-2-benzimidazolyl]tylosin hydrochloride 9, 20-[5-(2-imidazolinyl)-2-benzimidazolyl]tylosin hydrochloride 10, 20-[5-(N-morpholinylamidino)-2-benzimidazolyl]tylosin hydrochloride 11, 20-[5-(N-isopropylamidino)-2-benzimidazolyl]desmycosin hydrochloride 12, 20-[5-(2-imidazolinyl)-2-benzimidazolyl]desmycosin hydrochloride 13, 20-[5-(N-morpholinylamidino)-2-benzimidazolyl]desmycosin hydrochloride 14. Their antimicrobial activity was tested on a series of microorganisms.

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