Tea Tree Oil 42%
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Tea Tree Oil 42% (Melaleuca alternifolia)

Common Name: Indian Tea Tree Oil | ISO Grade (ISO 4730)

CAS: 68647-73-4 FEMA: 3058 HS Code: 330129 Terpinen-4-ol ≥ 42%

Extraction: Steam Distillation of Fresh Leaves & Twigs[cite: 190].

Organoleptic Specification

AppearanceClear to Pale Yellow Liquid [cite: 192]
OdourFresh, camphoraceous, medicinal [cite: 192]
TasteSharp, spicy [cite: 192]
SolubilitySoluble in alcohol, insoluble in water [cite: 192]

Physico-Chemical Data

Specific Gravity @ 25°C0.885 – 0.906 [cite: 194]
Refractive Index @ 20°C1.475 – 1.485 [cite: 194]
Optical Rotation+5° to +15° [cite: 194]
Acid Value≤ 2.0 mg KOH/g [cite: 194]

Key Chemical Composition (ISO 4730)

Terpinen-4-ol: ≥ 42.0%

γ-Terpinene: 10 – 28%

α-Terpinene: 5 – 13%

1,8-Cineole: ≤ 15%

α-Terpineol: 1.5 – 8%

Flash Point> 60°C [cite: 194]
Residue on Evaporation≤ 5.0% [cite: 194]

Typical Certificate of Analysis (COA)

Test Parameter Specification Typical Result
Terpinen-4-ol≥ 42.0% [cite: 200]43.8% [cite: 200]
1,8-Cineole≤ 15% [cite: 200]3.5% [cite: 200]
Specific Gravity @ 25°C0.885 – 0.906 [cite: 200]0.893 [cite: 200]
Refractive Index @ 20°C1.475 – 1.485 [cite: 200]1.480 [cite: 200]
Optical Rotation+5° to +15° [cite: 200]+9.6° [cite: 200]

Conclusion: Batch meets ISO 4730 requirements and conforms to quality standards for pharma and cosmetic use[cite: 201].