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79493-89-3

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79493-89-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79493-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,9 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79493-89:
(7*7)+(6*9)+(5*4)+(4*9)+(3*3)+(2*8)+(1*9)=193
193 % 10 = 3
So 79493-89-3 is a valid CAS Registry Number.

79493-89-3Downstream Products

79493-89-3Relevant articles and documents

Studies on Biologically Active Pteridines. VII. Absolute Configuration of (-)-6-Methyltetrahydropterin Produced by Enzymic Reduction

Matsuura, Sadao,Sugimoto, Takashi

, p. 2543 - 2544 (1981)

The C-6 configuration of (-)-6-methyltetrahydropterin, produced by enzymic reduction of the 7,8-dihydro precursor, is shown to be S by a synthesis.Condensation of 2,4-diamino-5-bromo-6-hydroxypyrimidine with (S)-1,2-propanediamine gave (S)-6-methyltetrahydropterin.Examination of CD spectra of the 6-methyltetrahydropterins from the two origins led to the above conclusion.

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