Basic information
- CAS
642-71-7- Standard SMILES
COc1cc(O)cc(OC)c1OC- InChIKey
VTCDZPUMZAZMSB-UHFFFAOYSA-N- Molecular formula
- C9H12O4
- Average molar mass
- 184.19 g/mol
- Monoisotopic mass
- 184.07355886
Names & identifiers
- Preferred name
- 3,4,5-Trimethoxyphenol
- IUPAC
- 3,4,5-trimethoxyphenol
- English name
- 3,4,5-Trimethoxyphenol
- Molecular formula
- C9H12O4
- Molecular weight
- 184.19
Names & synonyms
Show more names
Database identifiers
- CAS
642-71-7- PubChem CID
- 69505
- DTXSID
DTXSID20214405- ChEMBL
CHEMBL1319047- ChEBI
CHEBI:2760- UNII
- WXG8D4R582
- EC Number
- 211-387-2
- Nikkaji
- J107.381H
Properties
Computed structural properties
- XLogP
- 0.5
- Topological polar surface area
- 47.9 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 3
- Heavy atoms
- 13
- Formal charge
- 0
- Complexity
- 137
Experimental & physicochemical properties
Kovats Retention Index
1614;1599
3049;3049;3044;3060;3026;3060;3065
Collision Cross Section
133.5 Ų [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
145.13 Ų [M+Na]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards];130.28 Ų [M+H-H2O]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards];132.66 Ų [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards];145.67 Ų [M+K]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
Physicochemical properties
- Melting point
- 145 · 145-149 °C
- Boiling point
- 278.13 °C · 278.13°C (rough estimate)
- Density
- 1.2067 · 1.2067 (rough estimate)
- refractive index
- 1.4345 · 1.4345 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Soluble in chloroform.
- form
- Powder and/or Chunks
- pka
- 9.72 · 9.72±0.23(Predicted)
- color
- Light yellow to beige to light brown
- Sensitive
- Light Sensitive
- BRN
- 1958573 · 1958573
- InChI
- 1S/C9H12O4/c1-11-7-4-6(10)5-8(12-2)9(7)13-3/h4-5,10H,1-3H3
- InChIKey
- VTCDZPUMZAZMSB-UHFFFAOYSA-N
- SMILES
- COc1cc(O)cc(OC)c1OC
- CAS DataBase Reference
- 642 · 642-71-7(CAS DataBase Reference)
- FDA UNII
- 8 D4R582 · WXG8D4R582
- NIST Chemistry Reference
- 3 · Phenol, 3,4,5-trimethoxy-(642-71-7)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319
- Precautionary statements
- 264 · P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 37 · 37/39-26
- WGK Germany
- 3 · 3
- HS Code
- 29095000 · 29095000
- Storage Class
- 11 · 11 - Combustible Solids
- Hazard Classifications
- 2 Skin · Eye Irrit. 2Skin Irrit. 2
Safety & regulation
GHS classification
GHS Classification
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H335 (97.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 45 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;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
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- hs_code
- 29095000
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 37/39-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319
- Hazard Classifications
- Eye Irrit. 2Skin Irrit. 2
- Precautionary statements
- P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313
Chemistry & industry
Applications
Uses3,4,5-Trimethoxyphenol is a useful synthetic intermediate in the synthesis of Thymonin (T413210); a flavonoid compound with potential antioxidant activity against peroxyl radicals.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: A member of the class of phenols that is phenol substituted by methoxy groups at positions 3, 4 and 5.
Related reactions
Compound notes
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