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90922-97-7

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90922-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90922-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,2 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90922-97:
(7*9)+(6*0)+(5*9)+(4*2)+(3*2)+(2*9)+(1*7)=147
147 % 10 = 7
So 90922-97-7 is a valid CAS Registry Number.

90922-97-7Relevant articles and documents

Synthesis of a [2]benzazepine analogue of clavizepine

García, Alberto,Paz, Sonia,Domínguez, Domingo

, p. 665 - 667 (2001)

The synthesis of N-tosylbenzopyran[2]benzazepinone 2 using a simple protocol for assembly of an azepine ring on the xanthene skeleton is described. Formation of the C-C bond between C9 of the xanthen-9-ol 7 and the β-C of N-tosyl aminoacetaldehyde dimethyl acetal leads to 10, which upon treatment with formaldehyde undergoes ring closure.

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