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98304-20-2

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98304-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98304-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,3,0 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98304-20:
(7*9)+(6*8)+(5*3)+(4*0)+(3*4)+(2*2)+(1*0)=142
142 % 10 = 2
So 98304-20-2 is a valid CAS Registry Number.

98304-20-2Downstream Products

98304-20-2Relevant articles and documents

Synthesis of Partial Structures of N-Glycopeptides Representing the Linkage Regions of the Transmembrane Neuraminidase of an Influenca Virus and of Factor B of the Human Complement System

Kunz, Horst,Waldmann, Herbert,Maerz, Joachim

, p. 45 - 50 (2007/10/02)

The synthesis of the protected N-chitobiosylasparaganine peptides 12a and 14, which correspond to the linkage regions of factor B of the human complement system and of the transmembrane neuraminidase of an influenza virus, was accomplished by applying the protecting group combination Boc group/allyl ester together with acetyl groups in the carbohydrate part.From 12a the allyl ester and the acetates were simultaneously removed using ammonia in methanol.The Boc group was cleaved without side reactions using anhydrous trifluoroacetic acid.Attempts to remove the Boc-protecting group from the glycopeptides already deblocked in the carbohydrate part resulted predominantly in the cleavage of the O-glycosidic bond.

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