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81198-00-7

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81198-00-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81198-00-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,9 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81198-00:
(7*8)+(6*1)+(5*1)+(4*9)+(3*8)+(2*0)+(1*0)=127
127 % 10 = 7
So 81198-00-7 is a valid CAS Registry Number.

81198-00-7Relevant articles and documents

Practical preparation of challenging amides from non-nucleophilic amines and esters under flow conditions

Vrijdag, Johannes L.,Delgado, Francisca,Alonso, Nerea,De Borggraeve, Wim M.,Prez-Macias, Natalia,Alczar, Jesus

supporting information, p. 15094 - 15097 (2014/12/11)

A fast and efficient protocol for the formation of amides from low nucleophilic amines and esters in flow is described. Products were obtained in good to excellent yields and with the advantage of simultaneous mixing of all reagents at once, avoiding steps for intermediate formation. The protocol is also suitable to be combined with ester synthesis, resulting in the preparation of amides in-line from haloarenes. This journal is

Reaction of 3-phenyl-4,5-diaminopyrazole with 1,2-dioxocompounds: 3-Phenylpyrazolo[4,5-b]pyrazines

Cecchi,Costanzo,Pecori Vettori,et al.

, p. 116 - 122 (2007/10/02)

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