N,N-Dimethylformamide CAS 68-12-2
Chemical Name: N,N-Dimethylformamide
Common Abbreviation: DMF
CAS Registry Number: 68-12-2
Molecular Formula: C₃H₇NO
Molecular Weight: 73.11
Synonyms: N,N-Dimethylmethanamide, Neutral Marker for Capillary
Product Grade & Purity: ACS Grade, Purity ≥ 99.8%
Standard Laboratory Packaging: 4 × 25 mL
Appearance: Colorless transparent liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
This product is a flammable liquid that emits a distinctive fishy and amine-like odor at low concentrations, with an odor threshold ranging from 0.47 ppm to 100 ppm.
Key physical parameters:
- Melting Point: -61 °C
- Boiling Point: 153 °C
- Specific Gravity: 0.95 (relative to water, 1:1)
- Vapor Pressure: 3 mmHg at 20 °C
- Flash Point: 58 °C
- Autoignition Temperature: 444.5 °C
Combustion & explosion characteristics (tested at 100 °C):
- Lower Explosive Limit (LEL): 2.2%
- Upper Explosive Limit (UEL): 15.2%
NFPA 704 Hazard Rating: Health 2, Flammability 2, Reactivity 0
Solubility Performance: Completely miscible with water, and highly compatible with most conventional organic solvents. It features stable chemical properties under normal ambient conditions and is a typical polar aprotic solvent.
Chemical Properties
| Item | Specification |
| Melting point | -61 °C (lit.) |
| alpha | 0.94 º |
| Boiling point | 153 °C (lit.) |
| density | 0.944 g/mL (lit.) |
| vapor density | 2.5 (vs air) |
| vapor pressure | 2.7 mm Hg (20 °C) |
| refractive index | n20/D 1.430(lit.) |
| Fp | 136 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | water miscible |
| pka | -0.44±0.70(Predicted) |
| form | liquid |
| color | APHA: ≤15 |
| Appearance | colorless liquid |
| PH | 7 (200g/l, H2O, 20℃) |
| Odor | Faint, ammonia-like odor detectable at 100 ppm |
| Relative polarity | 0.386 |
| Odor Threshold | 1.8ppm |
| explosive limit | 2.2-16%(V) |
| Water Solubility | soluble |
| λmax | λ: 270 nm Amax: 1.00 λ: 275 nm Amax: 0.30 λ: 295 nm Amax: 0.10 λ: 310 nm Amax: 0.05 λ: 340-400 nm Amax: 0.01 |
| Sensitive | Hygroscopic |
| Merck | 14,3243 |
| BRN | 605365 |
| Exposure limits | NIOSH REL: TWA 10 ppm (30 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 10 ppm; ACGIH TLV: TWA 10 ppm (adopted). |
| Dielectric constant | 36.71 |
| InChIKey | ZMXDDKWLCZADIW-UHFFFAOYSA-N |
| LogP | -1.010 |
| Surface tension | 35.20mN/m at 298.15K |
| Surface tension | 37.1mN/m at 20°C |
| CAS DataBase Reference | 68-12-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Formamide, N,N-dimethyl-(68-12-2) |
| IARC | 2A (Vol. 47, 71, 115) 2018 |
| EPA Substance Registry System | N,N-Dimethylformamide (68-12-2) |
Safety Information
| Item | Specification |
| Hazard Codes | T |
| Risk Statements | 61-20/21-36 |
| Safety Statements | 53-45 |
| RIDADR | UN 2265 3/PG 3 |
| OEB | A |
| OEL | TWA: 10 ppm (30 mg/m3) [skin] |
| WGK Germany | 1 |
| RTECS | LQ2100000 |
| F | 3-10 |
| Autoignition Temperature | 445 °C |
| Hazard Note | Toxic |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29241990 |
| Hazardous Substances Data | 68-12-2(Hazardous Substances Data) |
| Toxicity | LD50 in mice, rats (ml/kg): 6.8, 7.6 orally; 6.2, 4.7 i.p. (Bartsch) |
| IDLA | 500 ppm |
Product Application
With excellent universal solubility, N,N-Dimethylformamide serves as a high-efficiency industrial solvent, functional additive and chemical synthesis intermediate, and has been widely adopted in multiple manufacturing fields.
It is commonly used for the processing of polymer fibers, thin films and various surface coating materials. It can optimize the production process and ensure stable spinning of acrylic fibers, and is also a key material for manufacturing wire enamels. In the pharmaceutical industry, it is widely utilized as a crystallization medium in drug synthesis and preparation procedures.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
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