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L-Menthol
- CAS Number
- : 2216-51-5
- HS Code
- : 2906.10.00
Basic Info
- IUPAC Name
- : (1R,2S,5R)-2-isopropyl-5-methylcyclohexan-1-ol
- Molecular Formula
- : C10H20O
- Molecular Weight (g/mol)
- : 156.2700
- Synonyms & Trade Names
- : Iso-menthol; Isomenthol; Neomenthol
- Purity / Assay (%)
- : 99% min
- Grade / Quality Level
- : Technical Grade
- Physical Form
- : Solid
- Concentration
- : Pure substance
- Appearance / Color
- : White to off-white solid
- Odor
- : Strong peppermint
- Melting Point (°C)
- : 38.0000
- Boiling Point (°C)
- : 218
- Density (g/cm³)
- : 0.9030
- Solubility in Water
- : Slightly soluble
- Signal Word
- : Warning
- GHS Hazard Class
- : Skin irritant
- H-Statements
- : H315|H319
- P-Statements
- : P264|P280|P305+P351+P338
- REACH Status
- : Registered
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 13
- Storage Conditions
- : Cool, dry, dark place
Categories
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Extraction: Similar to L-Menthone, L-Menthol can be extracted from natural sources like peppermint oil. Fractional distillation is often used to separate menthol from other components of the oil.
Synthesis: L-Menthol can also be synthesized from various starting materials. One common method is the synthesis from citral, which involves several steps including hydrogenation and isomerization reactions.