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1,2-bis(4-methylphenyl)ethane-1,2-dione

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Origin: China

Cas No: 3457-48-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 3457-48-5 Formula: C16H14O2 Molecular Weight: 238.28100

Basic Info

Chemical Name	1,2-bis(4-methylphenyl)ethane-1,2-dione
Synonyms	p-Tolil; Di-p-tolylethanedione; 4,4'-Dimethylbenzil; Ethanedione, bis(4-methylphenyl)-; 1,2-di(4-methylphenyl)-1,2-ethanedione; 1,2-Di-p-tolylethane-1,2-dione; 1,2-bis(4-methoxyphenyl)-ethane-1,2-dione; 1,2-bis(p-methylphenyl)ethanedione; Ethandione,bis(p-tolyl); 4,4'-dimethylbibenzoyl;
CAS No.	3457-48-5
Molecular Formula	C16H14O2
Molecular Weight	238.28100
PSA	34.14000
LogP	3.36900

Properties

Appearance & Physical State	yellow crystalline powder.
Density	1.119 g/cm3
Boiling Point	211ºC (7 mmHg) ,399.7ºC at 760 mmHg
Melting Point	102-105ºC
Flash Point	168.6ºC
Refractive Index	1.58

Safety Info

Safety Statements	S24/25
HS Code	2914399090
WGK Germany	3
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

4,4'-DIMETHYLBENZOIN→Dimethyl sulfide+1,2-bis(4-methylphenyl)ethane-1,2-dione
p-tolualdehyde→4-methylbenzyl alcohol+1,2-bis(4-methylphenyl)ethane-1,2-dione
4-Methylbenzoyl chloride→4,4'-Dimethylbenzophenone+1,2-bis(4-methylphenyl)ethane-1,2-dione

Precursor

ethyl 2-hydroxy-4-oxo-3,4-di-p-tolylbutanoate
Vinylene carbonate
4,4'-DIMETHYLBENZOIN

Downstream Product

1,2-bis[4-(bromomethyl)phenyl]ethane-1,2-dione
4-methylbenzyl alcohol

(4S,5R)-4,5-bis(4-methylphenyl)-4-(1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-2-one

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