Molekula
5,6,7,8-Tetrahydroquinoxaline
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
5,6,7,8-Tetrahydroquinoxaline is a heterocyclic organic compound used as an intermediate in pharmaceutical and agrochemical synthesis. It appears as a white to off-white solid with a molecular formula of C8H10N2 and a molecular weight of 134.18 g/mol. Its CAS number is 34413-35-9. The substance is classified with a warning signal word due to potential health hazards. Molekula supplies 5,6,7,8-Tetrahydroquinoxaline 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.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow liquid |
| Purity | ≥99.0% |
| Identification (IR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Flash Point | 91 °C |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 29 - 30 °C |
| Boiling Point | 108 to 111 °C at 760 mmHg |
| Solubility (other solvents) | Sparingly soluble in water; soluble in vegetable oils, propylene glycol and DMSO |
Source: PubChem CID 36822 (Human Metabolome Database (HMDB), Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 90038113 |
| CAS Number | 34413-35-9 |
| IUPAC Name | 5,6,7,8-tetrahydroquinoxaline |
| EC Number | 252-002-8 |
| Molecular Formula | C8H10N2 |
| Molecular Weight | 134.18 |
| Exact Mass | 134.0844 |
| SMILES | C1CCC2=NC=CN=C2C1 |
| InChIKey | XCZPDOCRSYZOBI-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H10N2/c1-2-4-8-7(3-1)9-5-6-10-8/h5-6H,1-4H2 |
| PubChem CID | 36822 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933.99.8290 |
| Tariff Code | 2933998090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- 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
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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, Portuguese, 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
- Cyclohexapyrazine
- FEMA 3321
- FEMA No. 3321
- Lucel
- Quinoxaline, 5,6,7,8-tetrahydro-
- TETRAHYDRO TERRAZINE 014
- Tetrahydroquinoxaline
- XCZPDOCRSYZOBI-UHFFFAOYSA-N
Frequently asked questions
What is 5,6,7,8-Tetrahydroquinoxaline used for?
It is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight?
The formula is C8H10N2 and the molecular weight is 134.18 g/mol.
How should this compound be stored?
Store in a cool, dry place, protected from light and moisture; keep container tightly closed.
What grade is available?
Available in technical grade; custom purity options may be available upon request.
Can Molekula supply this in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.