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331942-35-9

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331942-35-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331942-35-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,9,4 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 331942-35:
(8*3)+(7*3)+(6*1)+(5*9)+(4*4)+(3*2)+(2*3)+(1*5)=129
129 % 10 = 9
So 331942-35-9 is a valid CAS Registry Number.

331942-35-9Downstream Products

331942-35-9Relevant articles and documents

Novel phthalimide nucleosides for the specific recognition of a CG Watson-Crick base pair

Lengeler, David,Weisz, Klaus

, p. 1479 - 1481 (2007/10/03)

In an effort to extend the triple helix recognition code we have synthesized various substituted phthalimide-derived nucleosides that can recognize a CG Watson-Crick base pair. NMR experiments performed on the free nucleosides in methylene chloride at lowered temperatures indicate the strength and extent of H-bonding to the cytosine amino group of a CG base pair which strongly depend on the substituent of the phthalimide nucleobase. Consistent with the formation of an additional hydrogen bond to N7 of guanine, ureido-substituted nucleoside analogs show a higher overall affinity as compared to the 3-aminophthalimide nucleoside.

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