Molekula
2,3,5,6-Tetramethylpyrazine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
2,3,5,6-Tetramethylpyrazine is a crystalline organic compound with a distinctive aroma, widely used in the food and fragrance industries as a flavor enhancer and in traditional Chinese medicine for its therapeutic properties. It appears as white to pale yellow crystals or powder with a nutty, roasted scent. This chemical has a CAS number of 1124-11-4, a molecular formula of C8H12N2 (C4N2(CH3)4), and a molecular weight of 136.19 g/mol. It is stable at ambient storage conditions and carries a signal word of *Warning* for safety handling. Molekula supplies 2,3,5,6-Tetramethylpyrazine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White to Off-white crystalline powder |
| Melting Point | 70 - 90°C |
| Water | ≤ 1.0% |
| Heavy metals | ≤ 0.001% |
| Identification | Conforms to reference |
| Assay | ⩾ 99.5% |
| Related Substances | ≤ 0.30% |
| Residue on Ignition | ≤ 0.10% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 86 °C |
| Boiling Point | 190 °C at 760 mmHg |
| Solubility (other solvents) | Slightly soluble in water; soluble in oils, propylene glycol, organic solvents |
Source: PubChem CID 14296 (Human Metabolome Database (HMDB), Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 90027617 |
| CAS Number | 1124-11-4 |
| IUPAC Name | 2,3,5,6-tetramethylpyrazine |
| EC Number | 214-391-2 |
| Molecular Formula | C4N2(CH3)4 |
| Molecular Weight | 136.19 |
| Exact Mass | 136.1 |
| SMILES | CC1=C(N=C(C(=N1)C)C)C |
| InChIKey | FINHMKGKINIASC-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H12N2/c1-5-6(2)10-8(4)7(3)9-5/h1-4H3 |
| PubChem CID | 14296 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29339982 |
| Tariff Code | 2933998090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2,3,5,6,-Tetramethyl-1,4-pyrazine
- chuanxingzine
- CHUANXIONGQIN
- Chuanxiongzine
- FEMA No. 3237
- Ligustrazine
- Pyrazine, tetramethyl-
- TETRAMETHYLPYRAZINE
- Tetrapyrazine
- TMPZ
Frequently asked questions
What is 2,3,5,6-Tetramethylpyrazine commonly used for?
It is primarily used as a flavoring agent in food and beverages, contributing a nutty, roasted aroma, and is also employed in fragrance formulations and as a chemical intermediate.
What is the chemical formula and molecular weight of 2,3,5,6-Tetramethylpyrazine?
The chemical formula is **C₄N₂(CH₃)₄**, and the molecular weight is **136.19 g/mol**.
How should 2,3,5,6-Tetramethylpyrazine be stored?
Store in a tightly sealed container at **ambient temperature**, away from sources of ignition, and protected from moisture and strong oxidizing agents.
What grades or purities of 2,3,5,6-Tetramethylpyrazine does Molekula supply?
Molekula supplies **analytical standard grade (≥98% purity)** and **technical grade** for industrial applications—contact us for specific purity requirements.
Can Molekula supply 2,3,5,6-Tetramethylpyrazine in bulk quantities?
Yes, we offer bulk packaging options (e.g., 5 kg, 25 kg, and larger) for both standard and custom orders—inquire for availability and lead times.
What documentation is provided with an order of 2,3,5,6-Tetramethylpyrazine?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.