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28558-40-9

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28558-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28558-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,5,5 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28558-40:
(7*2)+(6*8)+(5*5)+(4*5)+(3*8)+(2*4)+(1*0)=139
139 % 10 = 9
So 28558-40-9 is a valid CAS Registry Number.

28558-40-9Downstream Products

28558-40-9Relevant articles and documents

ONE STEP PROCESS FOR REGIOSELECTIVE SYNTHESIS OF α-ACYLOXY CARBONYLS

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Page/Page column 7; 8; 9; 15; 16, (2015/01/06)

A regioselective N-Heterocyclic Carbene (NHC) catalyzed one step process for high yield synthesis of α-acyloxy carbonyl compounds is disclosed.

A rapid and facile esterification of na-carboxylates with alkyl halides promoted by the synergy of the combined use of DMSO and an ionic liquid under ambient conditions

Dighe, Satish N.,Bhattad, Ravindra V.,Kulkarni, Raghunath R.,Jain, Kishor S.,Srinivasan, Kumar V.

experimental part, p. 3522 - 3527 (2011/02/22)

The synergy of the combined use of DMSO and an ionic liquid viz. (bbim) has brought about a rapid and efficient esterification of sodium carboxylates with acyl and alkyl halides under ambient conditions in excellent isolated yields (90-95%) in short reaction times (12-40min). Copyright Taylor & Francis Group, LLC.

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