72681-40-4 Usage
General Description
2,4,6,7-Tetramethylquinoline is a chemical compound with the molecular formula C13H13N. It is a yellowish-brown liquid with a distinct odor and is primarily used as an intermediate in the production of dyes and pigments. It is also used in the synthesis of pharmaceuticals and as a stabilizer for plastics and rubber. 2,4,6,7-Tetramethylquinoline is classified as a hazardous chemical and should be handled with care, as it may cause irritation to the skin, eyes, and respiratory system upon contact or inhalation. Additionally, it is considered harmful if ingested and may have harmful effects on aquatic life.
Check Digit Verification of cas no
The CAS Registry Mumber 72681-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,8 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72681-40:
(7*7)+(6*2)+(5*6)+(4*8)+(3*1)+(2*4)+(1*0)=134
134 % 10 = 4
So 72681-40-4 is a valid CAS Registry Number.
InChI:InChI=1/C13H15N/c1-8-6-12-10(3)5-11(4)14-13(12)7-9(8)2/h5-7H,1-4H3
72681-40-4Relevant articles and documents
ORIENTATION EFFECTS IN THE SYNTHESIS OF QUINOLINE DERIVATIVES
Osborne, A. G.
, p. 2831 - 2842 (2007/10/02)
The ratio of isomers obtained in the synthesis of quinoline derivatives commencing from m-toluidine and 3,4-dimethylaniline has been studied.Introduction of additional 2- and/or 3-alkyl substituents into the heterocyclic ring has little effect, whilst introduction of a 4-alkyl substituent, either alone or in combination with 2- and/or 3-alkyl groups, causes the proportion of the 5- or 5,6-isomer to fall to zero.In the Beyer synthesis with butanone, 3-condensation predominates, although 1-condensation does occur to a small extent.The quinoline products have been carefully analysed by GLC, NMR and fractional crystallisation techniques, the value of peri-substituent effects in the interpretation of 1H NMR spectra is propounded.
