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143995-03-3

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143995-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143995-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,9 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143995-03:
(8*1)+(7*4)+(6*3)+(5*9)+(4*9)+(3*5)+(2*0)+(1*3)=153
153 % 10 = 3
So 143995-03-3 is a valid CAS Registry Number.

143995-03-3Downstream Products

143995-03-3Relevant articles and documents

N6-Substituent Effect on the Photooxidation of 2',3'-O-Isopropylideneadenosines with a Pyrimidopteridinetetraone N-Oxide. Chemical Evidence for the Generation and Reactivity of Adenosyl Cation Radicals

Sako, Magoichi,Makino, Toru,Kitada, Yukio,Hirota, Kosaku,Maki, Yoshifumi

, p. 1801 - 1806 (1992)

A comparative study on the photooxidation of 2',3'-O-isopropylideneadenosine 1a and its N6-benzoyl, N-6-monomethyl, and N6,N6-dimethyl derivatives, 1b-d, with a pyrimidopteridinetetraone N-oxide (PPO) was carried out.The ease of photooxidative consumption of the adenosines by the PPO is in the order 1d > 1c > 1a > 1b, which is parallel to their oxidation-peak potentials.Although substrates 1a and 1b underwent oxidative intramolecular cyclisation to the corresponding 5'-O,8-cycloadenosines, 2a and 2b, even in low yield, substrates 1c and 1d were exclusively oxidised at the N6-methyl group to give the corresponding N6-formyl derivatives, 3 and 4, together with minor amounts of demethylated products, 1a and 1c.The present observations provide chemical evidence for the generation and reactivity of adenosyl cation radicals.

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