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73808-92-1

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73808-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73808-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,0 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73808-92:
(7*7)+(6*3)+(5*8)+(4*0)+(3*8)+(2*9)+(1*2)=151
151 % 10 = 1
So 73808-92-1 is a valid CAS Registry Number.

73808-92-1Relevant articles and documents

N,S-DIMETHYL-S-PHENYLSULFOXIMINE. A REAGENT FOR THE OPTICAL RESOLUTION OF KETONES

Johnson, Carl R.,Zeller, James R.

, p. 1225 - 1234 (2007/10/02)

The addition of the α-lithio derivative of (+)- or (-)-N,S-dimethyl-S-phenylsulfoximine to selected dl-ketones was carried out at -78 deg C in tetrahydrofuran followed by acid quench at that temperature to produce mixtures of diastereomeric β-hydroxysulfoximines.The optically-active diastereomers were chromatographically separated on silica gel.The purified diastereomers were thermolyzed at ca. 130 deg to produce optically-active ketones and the optically-active sulfoximine which could be recycled.

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