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73564-11-1

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73564-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73564-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,6 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73564-11:
(7*7)+(6*3)+(5*5)+(4*6)+(3*4)+(2*1)+(1*1)=131
131 % 10 = 1
So 73564-11-1 is a valid CAS Registry Number.

73564-11-1Relevant articles and documents

Preparation of bis-Benzyne Precursor 2,5-bis(Trimethylsilyl)-1,4-Phenylene bis(Trifluoromethanesulfonate)

Carpenter, Casey A.,Wegwerth, Sarah E.,Douglas, Christopher J.

, p. 498 - 502 (2019/08/26)

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Interactions in crystals. 76. Single crystal structures of 2,5-bis(trimethylsilyl)-hydroquinone without solvent and with either dimethoxyethane or dioxane: Some insight into the manifold of hydrogen bridge bonding of the same molecule

Bock, Hans,Nick, Sabine,Naether, Christian,Bats, Jan W.

, p. 363 - 373 (2007/10/03)

2,5-Bis(trimethylsilyl)hydroquinone (monoclinic, C2/c, Z=12) forms infinite strings in x-direction, in which alternatingly on both sides each three molecules are bound together by three phenolic H bridges in a triangular arrangement. In the dimethoxyethane solvate (triclinic, P1, Z=1) with a 3:2 ratio of phenol to ether, the infinite strings are interlinked by twice-OH...O bonded H3COCH2CH2OCH3 chelate molecules. The smallest subunit with only two Hydrogen bonds -OHO...(CH2CH2)O informed in the monomeric 2:1 dioxane solvate (triclinic, P1, Z=1), The structural details of the different H bridge bonds are discussed based both on a statistical analysis from the Cambridge Structural Database as well as on PM3-calculated enthalpies of formation starting from the crystal structures determined. Johann Ambrosius Barth 1996.

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