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2-Methylanthraquinone

2-Methylanthraquinone structure

CAS No:
84-54-8
Formula:
C15H10O2
Chemical Name:
2-Methylanthraquinone
Synonyms:
9,10-Anthracenedione,2-methyl-;Anthraquinone,2-methyl-;2-Methyl-9,10-anthracenedione;2-Methylanthraquinone;Tectoquinone;2-Methyl-9,10-anthraquinone;Tectochinon;2-Methylanthracene-9,10-dione;β-Methylanthraquinone;NSC 607
Categories:
Pharmaceutical Intermediates > Bulk Drug Intermediates

Description

YELLOW TO GREEN-YELLOW FINE POWDER

2-methylanthraquinone is an anthraquinone that is 9,10-anthraquinone in which the hydrogen at position 2 is substituted by a methyl group. It derives from a 9,10-anthraquinone.

2-Methylanthraquinone Basic Attributes

Molecular Weight：

222.24

Exact Mass：

222.24

BRN：

2050523

EC Number：

201-539-6

UNII：

Q9P233HWAJ

NSC Number：

607

DSSTox ID：

DTXSID5041439

HScode：

29146990

Characteristics

PSA：

34.1

XLogP3：

3.9

Appearance：

yellow crystalline powder

Density：

1.3±0.1 g/cm3

Melting Point：

177 °C

Boiling Point：

215-220 °C @ Press: 4 Torr

Flash Point：

209 °C

Refractive Index：

1.644

Water Solubility：

soluble in water 1.234 mg/L @ 25°C.

Storage Conditions：

Store below +30°C.

Safety Information

Hazard category：

5.2

Transport codes：

UN30779/PG3

wgk germany：

hazard class code：

51/53

safety instructions：

22-24/25-61

Marks：

Xi,N

Hazard note：

Irritant

Precautionary statement(s)：

P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, P501

Hazard Statements：

H317

GHS Classification：

|Warning|H317 (33.33%): May cause an allergic skin reaction [Warning Sensitization, Skin]|P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, and P501|Aggregated GHS information provided by 6 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

2-methylanthraquinone

2-Methylanthraquinone Use and Manufacturing

Methods of Manufacturing

Heat toluene and anhydrous aluminum trichloride, control the temperature at 45-50°C, add phthalic anhydride under external cooling, and heat the mixture until the reaction is complete. The reaction mixture was poured into a 10% sulfuric acid aqueous solution, and the product-containing slurry was washed with water, layered and separated. The solvent layer containing the product is mixed with 5% sodium carbonate solution, filtered, washed, and dried to obtain 2-(p-toluoyl)benzoic acid, which is then heated with fuming sulfuric acid at 115°C for 1 hour to close the loop, and the product is poured into cold water. It is filtered, washed with water and dried.

Uses

It can be used as dye intermediate, sensitizer of photosensitive resin, organic synthesis raw material.

Manufacturing Info：

9,10-Anthracenedione, 2-methyl-: ACTIVE

Computed Properties

Molecular Weight:222.24
XLogP3:3.9
Hydrogen Bond Acceptor Count:2
Exact Mass:222.068079557
Monoisotopic Mass:222.068079557
Topological Polar Surface Area:34.1
Heavy Atom Count:17
Complexity:347
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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