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57538-75-7

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57538-75-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57538-75-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57538-75:
(7*5)+(6*7)+(5*5)+(4*3)+(3*8)+(2*7)+(1*5)=157
157 % 10 = 7
So 57538-75-7 is a valid CAS Registry Number.

57538-75-7Downstream Products

57538-75-7Relevant articles and documents

Synthesis of phosphorofluoridates and phosphorofluoridothioates via the phosphoramidite approach

Dabkowski, Wojciech,Tworowska, Izabela

, p. 866 - 874 (2007/10/03)

We present a very efficient synthetic procedure leading to the phosphorofluoridates RO-P(O)(OH)F 1 or phosphorofluoridothioates RO-P(S)(OH)F 2, which is based on the intermediary of fluorophosphoramidites (RO)P(F)N iPr2 5 [R = 9-(hyd

First Synthesis of Nucleosidyl Phosphorofluoridothioates and a Convenient Synthesis of Nucleosidyl Phosphorofluoridates

Dabkowski, Wojciech,Tworowska, Izabela

, p. 727 - 728 (2007/10/03)

The first synthesis of 3'- or 5'-nucleosidyl phosphorofluoridothioates RO-P(S)(OH)F have been accomplished via nucleosidyl phosphoramidofluoridates RO-P(NPr12)F.An analogous convenient procedure has been employed to prepare 3'- or 5'-nucleosidy

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