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189216-39-5

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189216-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189216-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,1 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189216-39:
(8*1)+(7*8)+(6*9)+(5*2)+(4*1)+(3*6)+(2*3)+(1*9)=165
165 % 10 = 5
So 189216-39-5 is a valid CAS Registry Number.

189216-39-5Relevant articles and documents

Photolabile protecting groups for nucleosides: Synthesis and photodeprotection rates

Hasan, Ahmad,Stengele, Klaus-Peter,Giegrich, Heiner,Cornwell, Paul,Isham, Kenneth R.,Sachleben, Richard A.,Pfleiderer, Wolfgang,Foote, Robert S.

, p. 4247 - 4264 (2007/10/03)

o-Nitrobenzyloxycarbonyl and a number of related groups have been tested for the photolabile protection of nucleoside 5'-hydroxyls. The rates of photodeprotection were found to vary by approximately 17-fold in a series of 5'-O-protected thymidine derivati

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