Basic information
- CAS
578-58-5- Standard SMILES
COc1ccccc1C- InChIKey
DTFKRVXLBCAIOZ-UHFFFAOYSA-N- Molecular formula
- C8H10O
- Average molar mass
- 122.16 g/mol
- Monoisotopic mass
- 122.07316494
Names & identifiers
- Preferred name
- 2-Methylanisole
- IUPAC
- 1-methoxy-2-methylbenzene
- English name
- 2-Methylanisole
- Molecular formula
- C8H10O
- Molecular weight
- 122.16
Names & synonyms
Show more names
Database identifiers
- CAS
578-58-5- PubChem CID
- 33637
- DTXSID
DTXSID9060368- ChEBI
CHEBI:141702- UNII
- 09G73SL17K
- EC Number
- 209-426-3
- Nikkaji
- J7.427F
Properties
Computed structural properties
- XLogP
- 2.7
- Topological polar surface area
- 9.2 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 1
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 80
Experimental & physicochemical properties
Solubility
Insoluble in water, soluble in oils
soluble (in ethanol)
Boiling Point
170.00 to 172.00 °C. @ 760.00 mm Hg
172 °C
Physical Description
Colorless liquid with a pleasant odor; [Alfa Aesar MSDS]
Liquid
Colourless liquid, Pungent-floral, warm, but almost grassy note
Kovats Retention Index
1000;999.2;983;995.3;986
1013;1013;1032;1007;1013.5;1005;1021;1005;1009;1005;1005;1009;1001
1432;1424;1409;1390
Physicochemical properties
- Melting point
- -34.1 °C · -34.1°C
- Boiling point
- 170 · 170-172 °C (lit.)
- Density
- 0.985 g/mL · 0.985 g/mL at 25 °C (lit.)
- vapor pressure
- 2 hPa · 2hPa at 25℃
- FLAVIS Number
- 4.014 · 04.014 | 1-Methoxy-2-methylbenzene
- refractive index
- 20 · n20/D 1.516(lit.)
- FEMA
- 2680 · 2680 | O-METHYLANISOLE
- Flash point
- 125 °F · 125 °F
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Chloroform, Ethyl Acetate (Slightly)
- form
- Liquid
- Specific Gravity
- 0.985 · 0.985
- color
- Clear colorless to light yellow
- Odor
- 1 % · at 1.00 % in dipropylene glycol. sweet nutty floral earthy walnut
- Odor Type
- naphthyl
- Odor Threshold
- 0.0029 ppm · 0.0029ppm
- Viscosity
- 14.678 mm2/s · 14.678mm2/s
- biological source
- synthetic
- Water Solubility
- immiscible
- JECFA Number
- 1242 · 1242
- BRN
- 1857415 · 1857415
- Dielectric constant
- 3.57 · 3.5699999999999998
- InChI
- 1S/C8H10O/c1-7-5-3-4-6-8(7)9-2/h3-6H,1-2H3
- InChIKey
- DTFKRVXLBCAIOZ-UHFFFAOYSA-N
- SMILES
- COc1ccccc1C
- LogP
- 3 at · 3 at 25℃
- Substances Added to Food (formerly EAFUS)
- O-METHYLANISOLE
- CAS DataBase Reference
- 578 · 578-58-5(CAS DataBase Reference)
- FDA UNII
- 9 G73SL17K · 09G73SL17K
- NIST Chemistry Reference
- 1 · Benzene, 1-methoxy-2-methyl-(578-58-5)
- EPA Substance Registry System
- 1 · Benzene, 1-methoxy-2-methyl- (578-58-5)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 2 · GHS02
- Signal word
- Warning
- Hazard statements
- 226 · H226
- Precautionary statements
- 210 · P210-P233-P240-P241+P242+P243-P280-P303+P361+P353-P370+P378-P403+P235-P501-P261
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- F
- Risk Statements
- 10 · 10
- Safety Statements
- 16 · 16
- RIDADR
- 1993 · UN 1993 3/PG 3
- WGK Germany
- 3 · 3
- Hazard Note
- Flammable
- TSCA
- TSCA listed
- HazardClass
- 3 · 3
- PackingGroup
- III
- HS Code
- 29093090 · 29093090
- Storage Class
- 3 · 3 - Flammable liquids
- Hazard Classifications
- 3 · Flam. Liq. 3
- REACH Registrations
- Inactive
- Limited Quantities
- 5 L · 5.0 L (1.3 gallons) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 0.8% (11 of 1453) of reports.
Warning
H226 (10.7%): Flammable liquid and vapor [Warning Flammable liquids];H302 (88.6%): Harmful if swallowed [Warning Acute toxicity, oral]
P210, P233, P240, P241, P242, P243, P264, P270, P280, P301+P317, P303+P361+P353, P330, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1453 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Reported as not meeting GHS hazard criteria per 11 of 1453 reports by companies.;There are 4 notifications provided by 1442 of 1453 reports by companies with hazard statement code(s).;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Regulatory Information
Chemical: Benzene, 1-methoxy-2-methyl-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
Status: Cease Manufacture Update: 25-12-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/20341
Benzene, 1-methoxy-2-methyl-: Does not have an individual approval but may be used under an appropriate group standard
Peroxide Forming Chemical
o-Methyl anisole
D*: Other compounds that may form peroxides
No amount of peroxides were found in new commerically available containers
Removal of Peroxides from Ethers with Cerous Hydroxide
Toxicology
Regulatory information
Regulatory Information
Chemical: Benzene, 1-methoxy-2-methyl-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
Status: Cease Manufacture Update: 25-12-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/20341
Benzene, 1-methoxy-2-methyl-: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1993 3/PG 3
- hs_code
- 29093090
- risk_code
- 10
- Signal word
- Warning
- Symbol(GHS)
- GHS02
- hazard_code
- F
- hazard_note
- Flammable
- safety_code
- 16
- hazard_class
- 3
- Storage Class
- 3 - Flammable liquids
- packing_group
- III
- Hazard statements
- H226
- Limited Quantities
- 5.0 L (1.3 gallons) (liquid)
- Excepted Quantities
- Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
- REACH Registrations
- Inactive
- Hazard Classifications
- Flam. Liq. 3
- Precautionary statements
- P210-P233-P240-P241+P242+P243-P280-P303+P361+P353-P370+P378-P403+P235-P501-P261
Chemistry & industry
Pharmacology
Uses & manufacturing
Use Classification
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavoring Agents -> JECFA Flavorings Index
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Applications
OccurrenceReported found in starfruit, mastic gum oil and rooibus tea (Aspalathus linearis).
UsesThe catalytic system of disubstituted aromatics was optimized for the 2-methylanisole reduction by a proper choice of the amine/Rh ratio which should be high enough to stabilize very small colloidal rhodium particles and low enough to avoid deactivation. The total synthesis of (±)-heliannuol D and its epimer has been completed in 9 steps and 12% overall yield from 2-methylanisole. The thermal activation of 2-methylanisole (60°C) by the Ir (III) complex TpMe2Ir (C6H5) 2 (N2)(1; TpMe2= hydrotris (3, 5-dimethylpyrazolyl) borate) yielded a mixture of hydride complexes. The total synthesis of the phenolic sesquiterpene mutisianthol has been accomplished in 12 steps from the readily available 2-methylanisole. The catalytic system was optimized for the 2-methylanisole reduction by a proper choice of the amine/Rh ratio which should be high enough to stabilize very small colloidal rhodium particles and low enough to avoid deactivation.
General Description2-Methylanisole is found in mastic oils, virgin olive oils and frankincense. It is a monomethoxybenzene and acts as an intermediate for the preparation of compounds with methylhydroquinone core.
Preparation methods
Preparation2-Methylanisole is synthesized by methylation of o-cresol using dimethylsulfate in caustic soda at 40°C.synthesis of 2-methylanisole: Make sodium hydroxide into a 20% solution, stir and mix with o-cresol, cool to below 10°C, and slowly add dimethyl sulfate dropwise. After the addition was completed, the temperature was raised to 40 °C for 20 min, and then reacted with 100 °C for 12 h. Then the reactant was washed with water until neutral, water was removed, distilled, and the fraction at 171°C was collected to obtain the finished product of 2-methylanisole.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: 2-methylanisole is a monomethoxybenzene that is o-cresol in which phenolic hydroxy group has been converted to the corresponding methyl ether. A 'green' solvent (b.p. 171°C) and food flavour ingredient, it is found in mastic oils, virgin olive oils and frankincense. It has a role as a polar aprotic solvent and a flavouring agent. It is a monomethoxybenzene, a volatile organic compound and a member of toluenes. It derives from an o-cresol.
Related reactions
Compound notes
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