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100391-89-7

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100391-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100391-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,3,9 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 100391-89:
(8*1)+(7*0)+(6*0)+(5*3)+(4*9)+(3*1)+(2*8)+(1*9)=87
87 % 10 = 7
So 100391-89-7 is a valid CAS Registry Number.

100391-89-7Downstream Products

100391-89-7Relevant articles and documents

Synthesis and properties of new 2-alkyl-1,4-benzoxazepine derivatives. Part I. Synthesis and cyclization of 2-phenoxyalkanoic acid derivatives

Kwiecien

, p. 733 - 741 (2007/10/03)

2-Alkyl-1,4-benzoxazepin-3,5-diones (8) were readily prepared by cyclodehydration of 2-(o-carbamoilphenoxy)alkanoic acids (7) in acetic anhydride, and with low yields by the same reaction of 2-(o-carboxyphenoxy)alkanoic acid amides (4). The novel acid amides 4 were synthesized from salicylaldehyde and 2-bromo esters 1, via formyl amides 3. The acid amides 7 were formed directly by condensation of salicylamides with 2-bromo esters 1 in dimethyl formamide or by hydrolysis of esters 6 obtained by the same reaction in methyl-ethyl ketone solution.

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