Ethanol CAS NO.14667-55-1
Product attributes
Our 2,3,5-Trimethylpyrazine is synthesized via controlled condensation of diacetyl with diammonium phosphate or via catalytic cyclization of appropriate amino alcohols, followed by fractional distillation under inert atmosphere.
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Product Name |
2,3,5-Trimethylpyrazine |
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Also Known As |
Trimethylpyrazine / 2,3,5-Trimethyl-1,4-diazine |
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CAS No. |
14667-55-1 |
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Molecular Formula |
C₇H₁₀N₂ |
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Molecular Weight |
122.17 g/mol |
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EINECS No. |
238-712-0 |
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Purity (GC) |
≥98% / ≥99% / ≥99.5% |
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Appearance |
Colorless to slightly yellow clear liquid |
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Odor |
Roasted nut, cocoa, baked potato, peanut |
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Density (25°C) |
0.975 g/mL |
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Boiling Point |
171-173°C |
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Flash Point |
72°C |
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Water Solubility |
Slightly soluble |
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Refractive Index |
n20/D 1.503-1.507 |
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Organic Solubility |
Soluble in ethanol, propylene glycol, oils |
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Storage Condition |
Store in cool dry place, keep container tightly sealed, protect from light, store below 30°C |
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Packing |
25kg net plastic drum, 200kg net steel drum, IBC (1000kg), ISO TANK |
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HS Code |
29339900 |
Product Description
Features
Our 2,3,5-Trimethylpyrazine is produced under strict quality control with high purity and stable chemical composition. It exhibits a strong and long-lasting aroma profile characterized by roasted, nutty, and cocoa-like notes. The compound has excellent thermal stability, allowing it to retain its flavor characteristics during high-temperature processing in food and industrial applications.
Advantages
High isomer purity: Our synthesis minimizes tetramethylpyrazine and other alkylpyrazine isomers → delivers a clean, predictable roasted aroma without off-notes.
Low odor threshold & high impact: Requires only 10–50 ppm in finished products to achieve a distinct roasted note → cost-effective for large-scale flavor formulations.
Excellent thermal stability: Stable under baking, frying, and retort processing conditions → maintains aroma integrity through harsh manufacturing processes.
Consistent batch-to-batch quality: ISO 9001:2015 certified production with in-process GC monitoring → ensures reproducible flavor profiles for brand consistency.
Benefits
For savory flavor manufacturers (snacks, instant noodles, seasonings):
2,3,5-Trimethylpyrazine delivers authentic roasted, nutty, and meaty notes that enhance umami perception → creates craveable taste profiles with lower dosage than natural extracts.
For confectionery and chocolate producers:
Enhances cocoa and roasted nut character in chocolate, pralines, and baked goods → improves richness and mouthfeel without adding sugars or fats.
For beverage formulators (coffee, tea, malted drinks):
Mimics the natural pyrazine profile of roasted coffee beans → restores roast notes lost during decaffeination or instant processing.
For dairy and plant-based alternatives:
Adds toasted and buttery nuances to cheese, yogurt, or vegan analogues → bridges the flavor gap for dairy-free products.
For tobacco product manufacturers:
Improves the sensory profile of cigarettes, heated tobacco units, and e-liquids → smooth roasted character reduces harshness and enhances mouthfeel.
Evidence
Laboratory testing confirms purity ≥99%, with strict control of moisture and impurity residues. Our production process follows standardized quality management systems, ensuring consistent odor profile and chemical stability across all batches. Customers worldwide rely on our product for stable performance in high-demand flavor applications.

Call to Action
Contact us today to source premium 2,3,5-Trimethylpyrazine (CAS 14667-55-1) for your flavor and fragrance formulations. Get stable quality, competitive pricing, and professional export support. Request a sample or quotation now to enhance your product development.
FAQ
Q1: What is 2,3,5-Trimethylpyrazine mainly used for?
A: It is mainly used in food flavoring, fragrance formulations, tobacco flavor enhancement, and specialty chemical production.
Q2: What aroma does 2,3,5-Trimethylpyrazine have?
A: It has a strong roasted, nutty, cocoa-like aroma, widely used to enhance flavor complexity.
Q3: What is the purity of your product?
A: Our 2,3,5-Trimethylpyrazine typically has a purity of ≥99%, ensuring stable aroma performance.
Q4: Is 2,3,5-Trimethylpyrazine natural or synthetic?
A: Both. It occurs naturally in roasted coffee, cocoa, peanuts, and grilled meats. Our product is synthetically produced to match the natural isomer profile, but we can provide "natural identical" or "nature-identical" labeling depending on your regulatory requirements.
Q5: How should 2,3,5-Trimethylpyrazine be stored?
A: Store in a cool, dry, dark place (below 25°C) in tightly sealed, inert containers (glass, aluminum, or HDPE). Avoid exposure to light, air, and strong odors. Shelf life is 24 months under proper storage. Do not store near strong oxidizing agents.
Q6: Is this product soluble in water?
A: It is partially soluble in water (approximately 2–3 g/L at 20°C) but freely soluble in ethanol, propylene glycol, vegetable oils, and most organic solvents used in flavor systems.
Q7: What packaging options are available?
A: We offer 1kg aluminum bottles, 5kg HDPE drums, 25kg steel drums, and 200kg net steel drums. For bulk quantities, we can also supply in 1000L IBC totes. All food-contact packaging is certified.
Q8: What is the minimum order quantity (MOQ) for trial?
A: 1 kg for sample evaluation. For commercial orders, MOQ is 25 kg. Larger quantities (drum or tote) are available with volume discounts.
Q9: Can I get a sample for sensory testing?
A: Absolutely. We offer free samples (up to 50g) for qualified buyers. You only pay shipping. Contact us to arrange sample delivery and we will also provide a basic application guide for your product type.
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