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226985-27-9

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226985-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 226985-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,9,8 and 5 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 226985-27:
(8*2)+(7*2)+(6*6)+(5*9)+(4*8)+(3*5)+(2*2)+(1*7)=169
169 % 10 = 9
So 226985-27-9 is a valid CAS Registry Number.

226985-27-9Downstream Products

226985-27-9Relevant articles and documents

One-step synthesis of new 3-oxa- or 3-azabicyclo[3.2.0]hept-5-en-2,7-dione and 5,9-dioxa- or 5,9-diazabicyclo[5.3.0]dec-1-en-3 -methyliden-6, 8-dione derivatives

Bonsignore, Leonardo,Loy, Giuseppe,Secci, Daniela,Secci, Mario,Cottiglia, Filippo

, p. 680 - 683 (2007/10/03)

In this work we describe the synthesis of new compounds of a 3-oxa- or 3-azabicyclo[3.2.0]hept-5-en-2,7-dione (3a-d) and 5,9-dioxa- or 5,9-diazabicyclo[5.3.0]dec-1-en-3-methyliden-6,8-dione (4a-d) type with potential biological activity, obtained from the reaction of 2-propyn-1-ol or 2-propynylamine derivatives (1a-d) with carbon suboxide (2) in various molar ratios.

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