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328249-90-7

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328249-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 328249-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,8,2,4 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 328249-90:
(8*3)+(7*2)+(6*8)+(5*2)+(4*4)+(3*9)+(2*9)+(1*0)=157
157 % 10 = 7
So 328249-90-7 is a valid CAS Registry Number.

328249-90-7Upstream product

328249-90-7Relevant articles and documents

Rapid construction of isatin derivatives via addition of bis(alkylthio)carbenes to aryl isocyanates

Rigby, James H.,Danca, M. Diana

, p. 6891 - 6894 (1999)

Thermally induced cyclization between bis(alkylthio)carbenes, derived from the corresponding oxadiazolines, and substituted aryl isocyanates provides access to a variety of isatin derivatives with good efficiency.

Bis(alkylthio)carbenes as novel reagents for organic synthesis

Rigby, James H.,Laurent, Stephane,Dong, Weitong,Danca

, p. 10101 - 10111 (2007/10/03)

Bis(alkylthio)carbenes have been shown to be a useful class of reactive intermediates for applications to organic synthesis. Substituted hydroindolones, isatins and hydroquinolones can be prepared by the addition of these carbenes to vinyl isocyanates. (C) 2000 Elsevier Science Ltd.

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