Featured Active Botanical Ingredients & Derivatives
Manufactured under pharmaceutical GMP protocols in Jiangxi, China. Each batch is qualified via GC-MS and HPLC for accurate active fractions and trace-level pesticide screening.
Technical Specification & Chromatographic Profile of Clove Leaf Oil
Clove leaf oil (derived via steam distillation from the foliage of Syzygium aromaticum, syn. Eugenia caryophyllata; CAS No. 8000-34-8 / 84961-50-2, EINECS 284-638-7) represents one of the global aroma and pharmaceutical chemical industry's foundational natural feedstocks. Unlike clove bud oil—which commands a premium primarily for high eugenyl acetate concentrations in fine perfumery—refined clove leaf oil is heavily prized for its high native phenolic potency, dominant eugenol content (typically 80.0% to 88.0% by GC-FID), and secondary sesquiterpenic matrix characterized by β-caryophyllene (8.0% to 15.0%) and trace α-humulene.
As an established GMP manufacturer located in the Jinggangshan Economic & Technological Development Area of Jiangxi, Jiangxi Baicao Pharmaceutical Co., Ltd. operates two advanced extraction workshops across 28,600 m² of precision production footprint. Our custom distillation and fractional rectification columns enable buyers across Europe, the Americas, and the Asia-Pacific to procure standardized grades tailored to precise organoleptic, pharmaceutical, and chemical synthesis benchmarks.
| Analytical Parameter | Reference Test Method | Standard Commercial Grade | Rectified Pharma / Cosmetic Grade |
|---|---|---|---|
| Appearance & Color | Visual / Photometric | Brownish-yellow to dark brown liquid | Pale yellow to clear golden mobile liquid |
| Odor Profile | Olfactory Panel Assessment | Characteristic spicy, warm, woody, phenolic | Sweet-spicy, dry clove note, low burnt undertones |
| Eugenol Assay (GC-FID) | ISO 3142 / Ph. Eur. 2.2.28 | ≥ 80.0% – 83.0% | ≥ 85.0% – 88.0% (Customizable to 90%+) |
| β-Caryophyllene | GC-MS Area Normalization | 8.0% – 15.0% | 4.0% – 10.0% (Controlled Fraction) |
| Specific Gravity (20°C/20°C) | Digital Densimetry (ISO 279) | 1.038 – 1.060 | 1.042 – 1.056 |
| Refractive Index (20°C) | Abbe Refractometry (ISO 280) | 1.5310 – 1.5380 | 1.5320 – 1.5360 |
| Optical Rotation (20°C) | Polarimetry (ISO 592) | -1°30' to 0°0' | -1°15' to +0°10' |
| Heavy Metals (Pb, As, Cd, Hg) | ICP-MS (USP <233>) | < 10 ppm total | < 3 ppm total (Compliant with Ph. Eur. 2.4.27) |
| Pesticide Multi-Residue | LC-MS/MS & GC-MS/MS | Meets EPA Core Limits | Undetectable across 450+ compound screening |
Engineering & Factory Advantages in Jiangxi, China
How Jiangxi Baicao Pharmaceutical optimizes the clove leaf supply chain through industrial rectification, automated purification, and vertically integrated quality management.
GMP Purification Workshops
Two dedicated, fully isolated production units segregating crude steam distillation from molecular rectification and secondary distillation. Designed to avoid all cross-contamination across plant extracts and aromatic volatiles.
- 12 automated industrial extraction lines
- Class 100,000 cleanroom filling zones
- Continuous vacuum distillation columns
Scalable Cost & Supply Security
Leveraging deep industrial agglomeration in China's Jiangxi botanical corridor, we offer significant throughput velocity, stabilized container-level contracting, and resistance to seasonal price shocks seen in spot markets.
- Direct origin raw feedstock aggregation
- Multi-ton holding tanks with N2 blankets
- Real-time shipping through major China ports
Rigorous QA / Analytical Lab
Our centralized testing laboratory houses Agilent GC-MS, Shimadzu HPLC, and refractometers. We profile chemical isomers, confirm the absence of synthetic guaiacol blends, and guarantee batch stability.
- Full analytical COA & MSDS per shipment
- Physical library archiving samples for 3 years
- Traceable batch documentation for audits
Global Industry Trends Transforming Clove Leaf Oil
Expanding beyond traditional fragrance compounding into high-yield green chemistry, organic crop protection, and antibiotic-free animal feed matrices.
Natural Vanillin Bioconversion
Global demand for "Natural Vanillin" has prompted food conglomerates to transition away from petroleum guaiacol. Clove leaf oil serves as the principal natural bio-eugenol substrate for microbiological and enzymatic conversion into natural vanillin crystals.
Bio-Agrochemicals & Nematicides
With tightening international regulations on organophosphates and synthetic soil fumigants (such as 1,3-dichloropropene), bulk clove leaf oil has emerged as a premier bio-nematicide, registered across organic programs for rapid disruption of parasitic nematode cuticle membranes.
Phytogenic Feed Additives (AGP Replacements)
Intensifying worldwide prohibitions on Antibiotic Growth Promoters (AGPs) in livestock feed have accelerated the adoption of microencapsulated clove leaf oil. Eugenol stabilizes ruminal and intestinal microbiota while selectively curtailing pathogenic Clostridium and Salmonella proliferation.
Clean-Label Preservation Systems
Consumer demand for paraben-free and synthetic preservative-free personal care has driven cosmetic formulators toward standardized clove leaf oil extracts, leveraging their high phenolic redox potential to prevent lipid oxidation and fungal spoilage in emulsified formulas.
Industrial Formulation Scenarios & Tailored Solutions
From dental therapeutic cements to multi-acre soil treatment, our custom fractionations match specific performance criteria without batch deviation.
Dental Therapeutics & Oral Hygiene
Primary Function: Local analgesic, odontogenic disinfectant, and matrix reactant in Zinc Oxide Eugenol (ZOE) temporary cements and periodontal dressings.
- Rectified grade with eugenol ≥ 85.0%
- Low-terpene variants for neutral flavor bases
- Complies with Ph. Eur. & USP standards
Biopesticides & Soil Remediation
Primary Function: NOP (National Organic Program) compliant bio-insecticide, broad-spectrum contact fungicide, and organic pre-plant fumigant.
- Technical Grade 80% eugenol for emulsion concentrates
- High flash-point stability for aerosol/sprayer delivery
- EPA 25(b) minimum risk active compatibility
Flavor & Fragrance Compounding
Primary Function: Essential building block for spicy carnation notes, amber bouquets, culinary seasonings, cured meat flavoring, and tobacco/vape aromatics.
- Decolorized (water-white to pale yellow) options
- Consistent sesquiterpene balance to prevent discoloration
- FEMA 2325 and FDA 21 CFR 184.1257 clearance
Global Procurement, Auditing & Packaging Protocols
Meeting the stringent vendor qualification demands of Fortune 500 chemical and flavor enterprises worldwide.
Regulatory Filing Dossiers
We supply full regulatory documentation for cross-border customs clearance and local registration:
- EU REACH Registration & Chemical Safety Report
- US FDA Food Facility & Drug Master File (DMF)
- Halal, Kosher, and IFRA Compliance Certificates
Industrial Bulk Packaging
Preserving terpene and phenolic integrity during trans-oceanic voyages using heavy-duty, certified containers:
- 200 kg Epoxy-lined steel drums (UN rated)
- 1,000 kg Fluorinated HDPE IBC Totes
- Nitrogen gas sparging for 36-month shelf stability
Contract Fractionation & OEM
Customizing physical properties to meet brand-specific product design guidelines:
- Custom eugenol rectification (80%, 82%, 85%, 88%+)
- Private label small bottling (10ml, 30ml, 100ml, 1L)
- Tailored retail kit packaging with full traceability
Complementary Botanical Extracts & Pure Oils
Sourced, extracted, and lab-certified at our Jiangxi production facility. Request commercial quotes and batch retention samples directly from our export sales division.
Frequently Asked Questions by Industrial Procurement Teams
Everything you need to know about lead times, custom eugenol concentrations, testing methodologies, and international shipping.
What is the difference between crude and rectified Clove Leaf Oil?
Crude clove leaf oil is obtained via initial field steam distillation, carrying a dark brown hue, heavier sesquiterpenic fractions, and occasional burnt notes. Rectified clove leaf oil undergoes vacuum redistillation to strip pitch, reduce iron and heavy metal traces, and standardize eugenol to specific targets (e.g., 85%+), resulting in a clear pale yellow color and a cleaner aromatic profile ideal for pharma and flavors.
How does Baicao ensure the absence of synthetic eugenol adulteration?
We employ chiral Gas Chromatography coupled with isotope ratio mass spectrometry (IRMS) and full GC-MS spectral profiling. Synthetic eugenol synthesized from petrochemical guaiacol or catechol contains distinctive marker byproducts and unnatural isotopic ratios (such as δ13C values) that are readily identified by our in-house QC laboratory before lot release.
What are your Minimum Order Quantities (MOQ) and packaging formats?
For customized wholesale and standard commercial grades, our baseline MOQ is 1 standard drum (200 kg net weight). For sample qualification trials and pilot batches, we provide 1 kg to 25 kg fluorinated canisters. For large-scale chemical synthesis and agricultural contracts, we ship in 1,000 kg IBC totes or full 20-foot FCLs (80 steel drums / 16,000 kg net).
Can you provide custom terpene-depleted or decolorized formulations?
Yes. Utilizing our fractional vacuum columns in Jiangxi Workshop 01, we can isolate β-caryophyllene to lower residual sesquiterpenes down to 2-4%, or execute high-vacuum wiped-film evaporation to deliver near water-white decolorized grades for fine cosmetics where formula color-shift must be prevented.
What is the standard product shelf life and recommended storage protocol?
When stored in original factory-sealed, nitrogen-flushed, epoxy-lined containers away from direct sunlight and ambient temperatures below 25°C, our clove leaf oil has a validated shelf life of 36 months. We recommend re-testing refractive index and peroxide values after 24 months of storage.
What documentation accompanies an export order?
Every export dispatch includes a batch-specific Certificate of Analysis (COA) detailing GC-MS percentages, a comprehensive 16-section SDS/MSDS according to GHS/CLP standards, Technical Data Sheet (TDS), Origin Certificate, Non-GMO and BSE/TSE statements, and IFRA Conformance statements where required.
Partner with an Accredited Chinese Clove Leaf Oil Manufacturer
Secure steady container-load allocations, customized chromatographic specifications, and transparent GMP quality assurance directly from Jiangxi Baicao Pharmaceutical Co., Ltd.