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145249-91-8

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145249-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145249-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,4 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 145249-91:
(8*1)+(7*4)+(6*5)+(5*2)+(4*4)+(3*9)+(2*9)+(1*1)=138
138 % 10 = 8
So 145249-91-8 is a valid CAS Registry Number.

145249-91-8Downstream Products

145249-91-8Relevant articles and documents

Studies on the Alkylation of 5'-CMP under Alkaline Conditions

Khan, Khurshid Alam,Qudrat-e-Khuda, M.,Ahmad, Viqar Uddin

, p. 1307 - 1313 (2007/10/02)

The reaction of 5'-CMP with methyl, ethyl, n-propyl and isopropyl iodides gave predominantly ribose alkylated products.Various alkylated derivatives have been characterized using UV spectroscopy, paper electrophoresis, (1)H NMR and FAB (negative) mass spectroscopic techniques.Under strongly alkaline conditions the 2'-O-alkylated derivatives are synthesized in maximal yields.Isopropylation reaction gave only a small yield of the 3'-O-isopropyl derivative, this could be explained on the basis of steric hindrance offered to the bulky isopropyl group at the 2'-OH position by the heterocyclic base of the nucleotide. Key words: Nucleotides; ribose alkylated products; (1)H NMR spectra.

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