Best Eugenia Caryophyllus Clove Leaf Oil Suppliers & Products

Sourcing Technical Grade Eugenol & Botanical Excipients for Global Pharmaceutical and Nutritional Manufacturing.

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Botanical Monograph

Understanding Eugenia Caryophyllus Clove Leaf Oil

Eugenia Caryophyllus Clove Leaf Oil is a volatile essential oil extracted via steam distillation from the leaves of the Syzygium aromaticum (syn. Eugenia caryophyllata) tree, a native evergreen of the Myrtaceae family. While clove bud oil remains highly celebrated in traditional aromatherapy, clove leaf oil acts as the primary industrial backbone for chemical separation processes, primarily due to its abundant yield and exceptionally high concentration of the phenylpropanoid compound, Eugenol.

From a botanical chemistry perspective, the leaf oil presents a deep amber-yellow viscous consistency and features a complex organic profile. Crucially, the oil comprises 75% to 88% eugenol, followed by beta-caryophyllene (5% to 15%), and lesser amounts of eugenyl acetate, alpha-humulene, and isoeugenol. Unlike bud oil, which retains a higher concentration of eugenyl acetate, clove leaf oil's high raw eugenol content makes it the preferred starting material for the synthesis of vanillin, pharmaceutical-grade analgesics, and stabilizing agents in veterinary health applications.

Core Active Profile

  • Eugenol Content: 78% - 85% (GC-MS Checked)
  • Refractive Index: 1.530 - 1.535 at 20°C
  • Specific Gravity: 1.036 - 1.046 at 25°C
  • Optical Rotation: -2.0° to 0°
Market Intelligence

Global Procurement Dynamics & Supply Chain Analysis

The purchasing architecture of Eugenia Caryophyllus Clove Leaf Oil requires balancing chemical purity with sourcing stability. Global supply chains rely heavily on tropical archipelagos and coastal regions, exposing buyers to seasonal yield shifts.

Geographical Sourcing

Madagascar and Indonesia control over 85% of global clove leaf production. Importers must build strong relationships with local distillers and establish multi-origin safety buffers to manage climate and shipping disruption risks.

Quality Standardization

Different extraction methods generate varying terpene profiles. Standardized HPLC and GC-MS profiles are critical for pharmaceutical buyers, ensuring that pesticide residues, heavy metals, and plasticizers stay below regulatory detection limits.

Risk Management

Volatile raw material costs require proactive pricing strategies. Direct supply agreements with certified manufacturers like Jiangxi Serum Pharma protect buyers from spot-market price spikes and secure stable, yearly volumes.

Regulatory Dossier

Technical Specifications: Pharmacopoeia & Food Grade Standards

To qualify as an active biological ingredient or pharmaceutical-grade additive, Eugenia Caryophyllus Clove Leaf Oil must meet strict specifications. The table below lists the performance parameters required by international standard organizations, including the United States Pharmacopeia (USP), Food Chemicals Codex (FCC), and European Pharmacopoeia (EP).

Analytical Parameter USP / NF Requirements FCC Food Grade Standard Serum Pharma Premium Specification
Assay (Eugenol by GC) 75.0% - 88.0% Min 82.0% 85.0% - 89.5%
Appearance Pale yellow to dark brown liquid Yellow to brown liquid Clear, light amber-yellow liquid
Specific Gravity (25°C) 1.030 to 1.060 1.036 to 1.046 1.038 to 1.045
Refractive Index (20°C) 1.530 to 1.538 1.531 to 1.535 1.532 to 1.536
Solubility in 70% Ethanol 1 volume in 2 volumes Passes Test 1 volume in 1.5 volumes (Clear solution)
Heavy Metals (as Pb) < 10 ppm < 10 ppm < 5 ppm
Pesticide Residue Complies with USP <561> Not specified ND (Non-Detected)
Corporate Capabilities

Industrial Solutions & Custom Processing Capabilities

Jiangxi Serum Pharma Industries Co., Ltd. serves as a professional supplier of pharmaceutical and nutritional products in China. Operating since 2017, we offer deep technical expertise in natural plant extracts, essential oils, Western medicines, and biological ingredients, achieving over $10,000,000 in annual sales.

To address the stability and solubility challenges of natural clove leaf oil, we provide advanced customization services, including Pre-Mix formulations, Co-Crystallization techniques, and Bio-Fermentation support. These methods convert liquid essential oils into stable, water-soluble powders, preventing eugenol degradation and extending product shelf-life.

  • Custom micro-encapsulation services for controlled eugenol release.
  • Advanced co-crystallization to improve active stability in dry solid doses.
  • Comprehensive microbial testing and validation for every production batch.
  • Complete regulatory support, including GMP certificate documentation.
2017
Established Year
500+
Cooperation Clients
200+
Related Suppliers
$10M+
Annual Sales (USD)
Technological Innovations

Advanced Processing Solutions

We modify raw essential oils and plant compounds using advanced processing platforms to meet complex oral and topical drug delivery requirements.

Pre-mix technology icon

Pre-mix Formulations

Providing standardized liquid and powder blends of clove leaf oil combined with synergistic antimicrobial compounds, optimized for seamless integration into manufacturing lines.

Co-Crystallization icon

Co-Crystallization

Binding liquid eugenol molecules into solid crystal lattices with carrier matrices. This stabilizes volatile oils, reduces strong odors, and prevents chemical breakdown during processing.

Bio-Fermentation icon

Bio-Fermentation

Utilizing clean bio-catalysis platforms to produce high-purity natural derivatives. This provides a sustainable, climate-independent alternative to traditional steam distillation.

Technical Support

Frequently Asked Questions (FAQ)

Review comprehensive answers to common technical, quality control, and logistics questions about sourcing Eugenia Caryophyllus Clove Leaf Oil.

What is the key chemical difference between Clove Leaf Oil and Clove Bud Oil?
The main difference lies in the concentration of Eugenol and Eugenyl Acetate. Clove leaf oil contains a higher percentage of raw eugenol (often 80–88%) but very little eugenyl acetate (usually under 2%). Clove bud oil contains 75–85% eugenol and a significant amount of eugenyl acetate (8–15%), which gives it a sweeter aroma. Because of its high eugenol content and lower cost, clove leaf oil is preferred for industrial chemical isolation and pharmaceutical synthesis.
How does Serum Pharma ensure the absence of heavy metals and pesticide residues?
Every batch of Eugenia Caryophyllus Clove Leaf Oil undergoes strict Gas Chromatography-Mass Spectrometry (GC-MS) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis. We strictly limit heavy metals to under 5 ppm, and verify that pesticide levels remain non-detected (ND), meeting the rigorous standards of USP chapter <561>.
Can Eugenia Caryophyllus Clove Leaf Oil be processed into a solid powder format?
Yes. Using our custom co-crystallization and micro-encapsulation techniques, we can convert liquid clove leaf oil into a stable, free-flowing powder. This process protects the active eugenol, reduces intense volatile odors, and allows for clean blending into tablet formulations or dry supplement mixes.
What are the recommended storage conditions to prevent oxidation of eugenol?
Clove leaf oil should be stored in full, tightly sealed, food-grade amber glass, aluminum, or lined steel drums. Keep containers in a cool, dry, well-ventilated area away from direct sunlight, heat, and open flames. We recommend nitrogen flushing headspace during repacking to prevent oxidation.
How does your bio-fermentation service compare to direct steam distillation?
Our bio-fermentation service uses engineered microbial hosts to synthesize pure eugenol and related bio-actives. While steam distillation remains the traditional method, bio-fermentation offers a highly consistent, pesticide-free, and climate-independent supply chain, ensuring stable pricing throughout the year.
What regulatory documentation is provided with bulk shipments?
We provide a comprehensive documentation packet for every shipment. This includes a Certificate of Analysis (COA) detailing GC-MS purity, Safety Data Sheet (SDS) compliance, Material Origin Certificates, Allergen Statements, and certificates verifying non-GMO and BSE/TSE-free status.

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