1068-19-5 Usage
General Description
The chemical 4,4-DIMETHYL HEPTANE, also known as iso-octane, is a branched-chain alkane hydrocarbon with the molecular formula C8H18. It is a colorless, flammable liquid with a strong odor, commonly used as a reference standard for determining the octane rating of gasoline. It is a highly non-reactive compound, making it useful as a solvent and as a reference compound in chemical analysis. Iso-octane is also used as a fuel additive to prevent engine knocking and improve fuel combustion efficiency. Due to its low reactivity and stable properties, it is considered to be relatively low in toxicity and is not known to cause any significant health hazards.
Check Digit Verification of cas no
The CAS Registry Mumber 1068-19-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,6 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1068-19:
(6*1)+(5*0)+(4*6)+(3*8)+(2*1)+(1*9)=65
65 % 10 = 5
So 1068-19-5 is a valid CAS Registry Number.
InChI:InChI=1/C9H20/c1-5-7-9(3,4)8-6-2/h5-8H2,1-4H3
1068-19-5Relevant articles and documents
Direct Geminal Dimethylation of Ketones and Exhaustive Methylation of Carboxylic Acid Chlorides Using Dichlorodimethyltitanium
Reetz, Manfred T.,Westermann, Juergen,Kyung, Suk-Hun
, p. 1050 - 1057 (2007/10/02)
The reaction of ketones with an excess of (CH3)2TiCl2 (6) leads to the replacement of the carbonyl oxygen atom by two methyl groups.This mild method of direct geminal dimethylation involves Grignard-type addition followed by formation of tertiary carbocations which are captured by methyltitanium species.Additional functional groups such as primary alkyl chlorides, thioethers, aromatics, ethers and esters are tolerated, but not thioketals.The procedure has been applied to the synthesis of (+/-)-cuparene (44).Similarly, carboxylic acid chlorides are converted to tert-butyl derivatives.
Geminale Dialkylierung von Ketonen mit Grignard-Verbindungen und Methyltitan(IV)-chloriden
Reetz, Manfred T.,Westermann, Juergen,Steinbach, Rainer
, p. 931 - 933 (2007/10/02)
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