Molekula
Diphenylamine 98% min.
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
Diphenylamine (CAS 122-39-4) is an aromatic amine used primarily as an antioxidant in fuels, rubber, and plastics, as well as a stabilizer in organic synthesis and analytical chemistry. It is also widely used to stabilize nitrocellulose propellants, explosives and celluloid, and as an intermediate in the manufacture of dyes and pesticides. It appears as a white to pale yellow crystalline solid with a molecular formula of (C6H5)2NH and a molecular weight of 169.22 g/mol. Store at ambient conditions. The product carries a **Danger** signal word due to its hazardous properties. Molekula supplies Diphenylamine 98% min. 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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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 | White to off-white flakes |
| Melting Point | 51 - 55°C |
| Boiling Point | 301 - 303°C |
| Flash Point | 152 - 154°C |
| Assay | ⩾ 98.0% |
| Solubility in water | Insoluble |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Crystals |
| Odour | Pleasant, floral odor. |
| Melting Point | 53 °C |
| Boiling Point | 302 °C |
| Solubility (other solvents) | Soluble in oxygenated and aromatic solvents |
| Vapour Pressure | 6.70 × 10⁻⁴ mmHg at 25 °C |
| pKa | pKa = 0.78 |
| log P (octanol/water) | 3.50 |
Source: PubChem CID 11487 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90031799 |
| CAS Number | 122-39-4 |
| IUPAC Name | N-phenylaniline |
| EC Number | 204-539-4 |
| Molecular Formula | (C6H5)2NH |
| Molecular Weight | 169.22 |
| Exact Mass | 169.0891 |
| SMILES | C1=CC=C(C=C1)NC2=CC=CC=C2 |
| InChIKey | DMBHHRLKUKUOEG-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H11N/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10,13H |
| PubChem CID | 11487 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29214420 |
| Tariff Code | 2921440020 |
Safety & GHS
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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, Russian, 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
- Aniline, N-phenyl-
- Anilinobenzene
- Benzenamine, N-phenyl-
- Big Dipper
- N-Phenylaniline
- N-Phenylbenzenamine
- N-Phenylbenzeneamine
- N,N-DIPHENYLAMINE
- Phenylaniline
- Scaldip
Frequently asked questions
What is Diphenylamine primarily used for?
Diphenylamine is commonly used as a stabilizer in organic peroxides, a reagent in analytical chemistry (e.g., nitrite detection), and as an antioxidant in fuels and plastics.
What is the chemical formula and molecular weight of Diphenylamine?
The formula is **(C6H5)2NH**, and the molecular weight is **169.22 g/mol**.
How should Diphenylamine be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture, strong oxidizers, and direct sunlight.
What purity grade is available for Diphenylamine from Molekula?
Molekula supplies Diphenylamine at a **minimum purity of 98%**.
Can Molekula supply Diphenylamine in bulk quantities?
Yes, bulk quantities are available upon request—please contact our sales team for pricing and logistics details.
What documentation is provided with an order of Diphenylamine?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.