104579-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104579-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,7 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104579-21:
(8*1)+(7*0)+(6*4)+(5*5)+(4*7)+(3*9)+(2*2)+(1*1)=117
117 % 10 = 7
So 104579-21-7 is a valid CAS Registry Number.
104579-21-7Relevant articles and documents
USE OF 2-(2-PYRIDYL)ETHYL GROUP AS A NEW PROTECTING GROUP OF INTERNUCLEOTIDIC PHOSPHATES IN OLIGONUCLEOTIDE SYNTHESIS
Takaku, Hiroshi,Hamamoto, Shoji,Watanabe, Testuo
, p. 699 - 702 (1986)
2-(2-Pyridyl)ethyl group is used as a highly selective protecting group of internucleotidic phosphates that is removable under mild conditions by treatment with CH3I in CH3CN without a side reaction such as N-alkylation.