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228243-48-9

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228243-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 228243-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,2,4 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 228243-48:
(8*2)+(7*2)+(6*8)+(5*2)+(4*4)+(3*3)+(2*4)+(1*8)=129
129 % 10 = 9
So 228243-48-9 is a valid CAS Registry Number.

228243-48-9Relevant articles and documents

An industrial process for synthesizing lodenosine (FddA)

Izawa, Kunisuke,Takamatsu, Satoshi,Katayama, Satoshi,Hirose, Naoko,Kozai, Shigetaka,Maruyama, Tokumi

, p. 507 - 517 (2003)

Two industrial synthetic approaches to Lodenosine (1, FddA, 9-(2,3-dideoxy-2-fluoro-β-D-threo-pentofuranosyl) adenine) via a purine riboside or a purine 3′-deoxyriboside are described. Several novel applications of deoxygenation and fluorination methods are compared considering reaction yields, economy, safety and environmental concerns.

Introduction of a benzoyl group onto riboside in aqueous solution: One- step synthesis of 6-chloropurine 2',3'-di-O-benzoylriboside

Kozai, Shigetada,Takamatsu, Satoshi,Izawa, Kunisuke,Maruyama, Tokumi

, p. 4355 - 4358 (2007/10/03)

A benzoyl group was introduced onto the 3'-hydroxyl group of 6- chloropurine riboside by treatment with benzoylating agents in the presence of an organic or inorganic base in aqueous solution, in which further reaction gave 6-chloropurine 2',3'-di-O-benzo

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