Molekula
1-Methylnaphthalene
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
1-Methylnaphthalene is a polycyclic aromatic hydrocarbon used as a solvent and intermediate in chemical synthesis. It appears as a colorless to pale yellow liquid with a characteristic odor. CAS: 90-12-0, Molecular Formula: C11H10, Molecular Weight: 142.20 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies 1-Methylnaphthalene 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
100 g — £26.30 per pack ex VAT · £31.56 inc. VAT
-
500 g — £77.70 per pack ex VAT · £93.24 inc. VAT
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 | Light yellow liquid or dark blue to black liquid |
| Water | ≤1.0% |
| Assay | ≥96.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 82 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid or oil |
| Melting Point | -30.43 °C |
| Boiling Point | 244 °C |
| Density | 1.02 (relative, water = 1) |
| Water Solubility | 25 mg/L at 25 °C |
| Solubility (other solvents) | Very soluble in ethanol and ether; soluble in benzene |
| Vapour Pressure | 7.2 Pa at °C |
| Refractive Index | 1.6170 |
| log P (octanol/water) | 3.87 |
Source: PubChem CID 7002 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 30297403 |
| CAS Number | 90-12-0 |
| IUPAC Name | 1-methylnaphthalene |
| EC Number | 201-966-8 |
| Molecular Formula | C10H7CH3 |
| Molecular Weight | 142.20 |
| Exact Mass | 142.0783 |
| SMILES | CC1=CC=CC2=CC=CC=C12 |
| InChIKey | QPUYECUOLPXSFR-UHFFFAOYSA-N |
| InChI | InChI=1S/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3 |
| PubChem CID | 7002 |
| UN Number | UN3082 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29029090 |
| Tariff Code | 29029000 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H304 May be fatal if swallowed and enters airways
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- 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
- 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, 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
- 1-Methylnapththalene
- alpha-methyl naphthalenes
- alpha-Methylnaphthalene
- FEMA No. 3193
- FEMA Number 3193
- Methyl-1-naphthalene
- METHYLNAPHTHALENE
- Methylnaphthalene(mix)
- Naphthalene, 1-methyl-
- Naphthalene, methyl-
Frequently asked questions
What is 1-Methylnaphthalene used for?
It is primarily used as a solvent and intermediate in the synthesis of dyes, pharmaceuticals, and other organic compounds.
What is the chemical formula and molecular weight of 1-Methylnaphthalene?
The formula is C10H7CH3 (or C11H10) and the molecular weight is 142.20 g/mol.
How should 1-Methylnaphthalene be stored?
It should be stored at ambient temperature in a tightly closed container, away from heat and ignition sources.
What grade is available for 1-Methylnaphthalene?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply 1-Methylnaphthalene in bulk?
Yes, Molekula can supply 1-Methylnaphthalene in bulk quantities—please contact sales for pricing and availability.
What documentation comes with an order of 1-Methylnaphthalene?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.