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177087-38-6

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177087-38-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177087-38-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,0,8 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 177087-38:
(8*1)+(7*7)+(6*7)+(5*0)+(4*8)+(3*7)+(2*3)+(1*8)=166
166 % 10 = 6
So 177087-38-6 is a valid CAS Registry Number.

177087-38-6Downstream Products

177087-38-6Relevant articles and documents

Reduction of cyclic maleic acid derivatives

Stachel, Hans-Dietrich,Schachtner, Josef,Seidel, Josef

, p. 409 - 416 (2007/10/03)

A series of potentially cytotoxic αβ-unsaturated γ-hydroxy-butyrolactones, -lactams and -thiolactones has been synthesized via regioselective hydride reduction of the appropriate maleic acid anhydrides, imides and thioanhydrides. By this means a straightforward access to naturally occurring antibiotic narthigenine 2, its hitherto unknown thio-analogue 5b and higher substituted derivatives and analogues of 2 is presented.

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