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156357-14-1

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156357-14-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156357-14-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,3,5 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156357-14:
(8*1)+(7*5)+(6*6)+(5*3)+(4*5)+(3*7)+(2*1)+(1*4)=141
141 % 10 = 1
So 156357-14-1 is a valid CAS Registry Number.

156357-14-1Relevant articles and documents

Synthesis and biologic activity of purine 2'-deoxy-2'-fluoro- ribonucleosides

Thomas,Tiwari,Clayton,Secrist III,Montgomery

, p. 309 - 323 (2007/10/02)

The synthesis of 3,5-di-O-benzoyl-2-deoxy-2-fluoro-D-ribofuranosyl bromide (8) and its reaction with 2,6-dichloropurine by fusion and with mercuric cyanide catalysis is described. The resulting 2,6-dichloro-9-(3,5-di-O- benzoyl-2-deoxy-2-fluoro-β-D-ribofuranosyl)purine (13) was converted to the 2-fluoroadenine (16), the 2-chloroadenine (17), 2,6-diaminopurine (12), and guanine (14) nucleosides by standard procedures. These nucleosides were cytotoxic to a number of cell lines in culture. The 2-haloadenine nucleosides 16 and 17 gave modest increases in lifespan when tested against the P388 leukemia in mice.

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