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128993-42-0

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128993-42-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128993-42-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,9 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128993-42:
(8*1)+(7*2)+(6*8)+(5*9)+(4*9)+(3*3)+(2*4)+(1*2)=170
170 % 10 = 0
So 128993-42-0 is a valid CAS Registry Number.

128993-42-0Downstream Products

128993-42-0Relevant articles and documents

Coenzyme-inspired chemistry 2: 4,5-dihydroimidazolium ylides (NHCs) and the reactions of 2-(1-hydroxyalkyl)-4,5-dihydroimidazoles

Jones, Raymond C. F.,Nichols, John R.

, p. 5926 - 5935 (2013/09/12)

Ketones are prepared from aldehydes via 1-benzyl-2-(1-hydroxyalkyl)-4,5- dihydroimidazoles (adducts of the aldehydes with 1-benzyl-2-lithio-4,5- dihydroimidazoles) whereas 1-benzyl-2-(1-oxoalkyl)-4,5-dihydroimidazoles are shown to act as acyl transfer reagents via C-C bond cleavage. 4,5-Dihydroimidazolium ylides (NHCs) are intermediates in both processes, which constitute thiamine-inspired C-C bond formation and cleavage protocols.

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