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934011-54-8

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934011-54-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 934011-54-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,0,1 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 934011-54:
(8*9)+(7*3)+(6*4)+(5*0)+(4*1)+(3*1)+(2*5)+(1*4)=138
138 % 10 = 8
So 934011-54-8 is a valid CAS Registry Number.

934011-54-8Relevant articles and documents

A simple and efficient synthesis of puromycin, 2,2′-anhydro- pyrimidine nucleosides, cytidines and 2′,3′-anhydroadenosine from 3′,5′-O-sulfinyl xylo-nucleosides

Takatsuki, Ken-Ichi,Ohgushi, Sumito,Kohmoto, Shigeo,Kishikawa, Keiki,Yamamoto, Makoto

, p. 719 - 734 (2007/10/03)

Synthesis of antibiotics, puromycin and 3 ′-amino-3 ′-deoxy-N 6 ,N 6 -dimethyladenosine 11 was achieved by utilizing the cyclic sulfite 6a of the xylo -3 ′,5 ′-dihydroxy group as a new protective group. The key synthetic step is the deprotection of the sulfite moiety through the intramolecular cyclization of 2-α-carbamate 7 . In a similar manner, 2,2 ′-anhydro-pyrimidine nucleosides 15 , ribo -cytidines 17 and 2 ′,3 ′-anhydroadenosine 14 were prepared in high yields from the corresponding sulfites 4 , 5 , and 6b , respectively. Copyright Taylor & Francis Group, LLC.

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