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135597-77-2

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135597-77-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135597-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,5,9 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 135597-77:
(8*1)+(7*3)+(6*5)+(5*5)+(4*9)+(3*7)+(2*7)+(1*7)=162
162 % 10 = 2
So 135597-77-2 is a valid CAS Registry Number.

135597-77-2Downstream Products

135597-77-2Relevant articles and documents

Exciton Coupling from Dipyrrinone Chromophores

Byun, Young-Seok,Lightner, David A.

, p. 6027 - 6033 (1991)

2,3,7,8-Tetramethyl-(10H)-dipyrrin-1-one-9-carboxylic acid and p-(dimethylamino)benzoic acid are reacted separately with (1R,2R)-cyclohexanediol to form the corresponding diesters (1 and 3, respectively).These diesters exhibit intense bisignate circular dichroism (CD) spectra characteristic of exciton coupling and show a negative exciton chirality: Δεmax408 -122.5, Δεmax360 +95 (1 in CH2Cl2) and Δεmax318 -88.5 , Δεmax292 +41.5 (3 in CH2Cl2).In (CH3)2SO solvent the Cotton effect signs become inverted for the bis(dipyrrinone ester) but remain unchanged for the bis.

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