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Azulene, 3-[2-(3,8-dimethyl-5-azulenyl)propyl]-1,4-dimethyl-7-(1-methylethyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138935-75-8

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138935-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138935-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,3 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138935-75:
(8*1)+(7*3)+(6*8)+(5*9)+(4*3)+(3*5)+(2*7)+(1*5)=168
168 % 10 = 8
So 138935-75-8 is a valid CAS Registry Number.

138935-75-8Downstream Products

138935-75-8Relevant academic research and scientific papers

Oxidation of 4,6,8-Trimethylazulene and Guaiazulene with Hydrogen Peroxide in Pyridine

Matsubara, Yoshiharu,Morita, Masanori,Takekuma, Shin-ichi,Nakano, Tomohiro,Yamamoto, Hiroshi,Nozoe, Tetsuo

, p. 3497 - 3499 (2007/10/02)

Oxidation of 4,6,8-trimethylazulene (1) with hydrogen peroxide in pyridine at 25 deg C for 18 h gave 4,6,8-trimethyl-1,5- and -1,7-azulenequinones, their 2-(4,6,8-trimethyl-1-azulenyl) derivatives, and 2,3-dihydro-4,6- and -4,7-dimethyl-2-(4,6,8-trimethyl-1-azulenyl)-1H-inden-1-ones in much higher yields than those by autoxidation of 1 in DMF at 120 deg C.The same oxidation of guaiazulene afforded sixteen separable products, among which there were three new dimeric condensates.

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