Naphthalene
SIAL/84679 - analytical standard
CAS Number: 91-20-3
Empirical Formula (Hill Notation): C10H8
Molecular Weight: 128.17
EC Number: 202-049-5
MDL Number: MFCD00001742
Linear Formula: C10H8
Product Type: Chemical
| application(s) | cleaning products cosmetics environmental food and beverages personal care |
| assay | ≥99.7% (GC) |
| autoignition temp. | 978 °F |
| bp | 218 °C (lit.) |
| expl. lim. | 5.9 % |
| format | neat |
| grade | analytical standard |
| InChI | 1S/C10H8/c1-2-6-10-8-4-3- |
| InChI key | UFWIBTONFRDIAS-UHFFFAOYSA |
| mp | 79.5-81.0 °C |
| 80-82 °C (lit.) | |
| Quality Level | 100 ![]() |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | c1ccc2ccccc2c1 |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable | |
| vapor density | 4.4 (vs air) |
| vapor pressure | 0.03 mmHg ( 25 °C) |
| Application: | Naphthalene is used as a calibration standard for the real-time quantification with high specificity for naphthalene vapor and other HOVs in industrial environment using NaDos personal exposure monitor (PEM) device. |
| Application: | Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. |
| General description: | Naphthalene is widely used as an intermediate in the chemical and plastics industry. It is commonly found in petroleum, coal, mothballs, cigarette smoke, biomass burning, incomplete combustion, etc. |
| Symbol | ![]() ![]() ![]() GHS02,GHS07,GHS08,GHS09 |
| Signal word | Warning |
| Hazard statements | H228 - H302 - H351 - H410 |
| Precautionary statements | P201 - P210 - P273 - P301 + P312 + P330 - P308 + P313 |
| Hazard Codes | Xn,N |
| Risk Statements | 22-40-50/53 |
| Safety Statements | 36/37-46-60-61 |
| RIDADR | UN1334 - class 4.1 - PG 3 - Naphthalene, crude |
| WGK Germany | WGK 3 |
| Flash Point(F) | 173.3 °F - closed cup |
| Flash Point(C) | 78.5 °C - closed cup |
| Purity | ≥99.7% (GC) |
| bp | 218 °C (lit.) |
| mp | 79.5-81.0 °C; 80-82 °C (lit.) |
| UNSPSC | 20121904 |





