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137655-91-5

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137655-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137655-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,5 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137655-91:
(8*1)+(7*3)+(6*7)+(5*6)+(4*5)+(3*5)+(2*9)+(1*1)=155
155 % 10 = 5
So 137655-91-5 is a valid CAS Registry Number.

137655-91-5Downstream Products

137655-91-5Relevant articles and documents

Aziridination of the Uracil 5,6-Olefinic Bond of 3-N-3',5'-Di-O-tribenzoyl-5-vinyl-2'-deoxyuridine

Kumar, Rakesh,Wiebe, Leonard I.,Knaus, Edward E.,Nakashima, Thomas T.

, p. 1467 - 1468 (2007/10/02)

Oxidation of N-aminophthalimide with lead tetra-acetate at -50 deg gives N-acetoxyaminophthalimide (3) which selectively aziridinates the 5,6-double bond present in 3-N-3',5'-di-O-tribenzoyl-5-vinyl-2'-deoxyuridine (1a) to yield 2--7-(1-phthalimido)-4-N-3',5'-di-O-tribenzoyl-6-vinyl-2,4,7-triazabicycloheptan-3,5-dione (5).

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