98-23-7 Usage
General Description
5-Tert-Butyl-1,2,3-Trimethylbenzene, also known as PTB, is a chemical compound with the molecular formula C12H18. It is a colorless liquid with a slight sweet odor and is insoluble in water. PTB is commonly used as a solvent in various industrial processes and as an intermediate in the production of other chemicals. It is also used as a fragrance ingredient in perfumes and personal care products. PTB is considered to have low toxicity, but prolonged exposure to high concentrations can cause irritation to the skin, eyes, and respiratory system. Therefore, appropriate safety measures should be taken when handling this chemical.
Check Digit Verification of cas no
The CAS Registry Mumber 98-23-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98-23:
(4*9)+(3*8)+(2*2)+(1*3)=67
67 % 10 = 7
So 98-23-7 is a valid CAS Registry Number.
InChI:InChI=1/C13H20/c1-9-7-12(13(4,5)6)8-10(2)11(9)3/h7-8H,1-6H3
98-23-7Relevant articles and documents
Synthesis of 5-tert-butyl-1,2,3-trimethylbenzene catalyzed by [Et3NH]Cl–AlCl3
Zhang,Huang,Jiang,Sun,Ren
, p. 1163 - 1166 (2016)
Common Lewis acids and Lewis acidic ionic liquid catalysts were applied in the synthesis of 5-tert-butyl-1,2,3-trimethylbenzene from 1,2,3-trimethylbenzene and 2-chloro-2-methylpropane, where [Et3NH]Cl–AlCl3 demonstrated the most promising catalytic potential. The effects of reaction time, temperature, catalyst composition and dosage have been systematically studied in the presence of [Et3NH]Cl–AlCl3. The maximum selectivity of 90.32% was achieved upon heating at 10°C for 5 h with a mass fraction of [Et3NH]Cl–AlCl3 to 1,2,3-trimethylbenzene of 10%. Activity of the ionic liquid catalyst remained high after several cycles.
