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917890-17-6

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917890-17-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 917890-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,7,8,9 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 917890-17:
(8*9)+(7*1)+(6*7)+(5*8)+(4*9)+(3*0)+(2*1)+(1*7)=206
206 % 10 = 6
So 917890-17-6 is a valid CAS Registry Number.

917890-17-6Downstream Products

917890-17-6Relevant articles and documents

Multicomponent synthesis of dihydrobenzoxazepinones by coupling Ugi and Mitsunobu reactions

Banfi, Luca,Guanti, Giuseppe,Basso, Andrea,Lecinska, Paulina,Riva, Renata

, p. 4236 - 4240 (2008/09/18)

Various dihydrobenzo[f][1,4]oxazepin-5-ones have been convergently prepared in 2-3 steps by coupling Ugi and Mitsunobu reactions. Two alternative methodologies were used: in the first one the Ugi condensation was followed by a Mitsunobu cyclization (2 ste

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