N,N'-Diphenyl-p-Phenylenediamine(CAS 74-31-7)
| Purity | Grade | Package | Stock | Price | Quantity |
| 95% | RG | 5G | In Stock | 5 USD
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| 95% | RG | 25G | In Stock | 8 USD
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| 95% | RG | 100G | In Stock | 24 USD
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| 98% | RG | 5G | In Stock | 6 USD
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| 98% | RG | 25G | In Stock | 13 USD
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| 98% | RG | 100G | In Stock | 44 USD
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| 98% | RG | 500G | In Stock | 128 USD
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| 98% | RG | 2.5KG | In Stock | 433 USD
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Available NMR Spectrum
Verified In Stock
Fast Shipping ISO 9001
Quality System
Applications of 74-31-7
N,N'-Diphenyl-p-phenylenediamine finds extensive use across various industries:
- Rubber Industry: As an antioxidant and accelerator, it enhances the durability and performance of rubber products.
- Petroleum Industry: Used as an antioxidant for petroleum oils to prolong shelf life and stability.
- Food Industry: Serves as an additive in feedstuffs to prevent oxidative deterioration.
- Polymer Chemistry: Acts as a polymerization inhibitor to control the rate of polymer formation.
- Veterinary Medicine: Utilized to prevent Vitamin E deficiency in animals.
Physical and chemical properties of 74-31-7
Acidity coefficient |
1.85±0.20(Predicted) |
|---|---|
Boiling Point |
220-225 °C @ 0.5 mm Hg |
BRN |
2215944 |
Decomposition |
WHEN HEATED TO DECOMP, IT EMITS HIGHLY TOXIC FUMES... |
Density |
Relative density (water = 1): 1.2 |
Exact Mass |
260.131348 |
Flash Point |
232 °C c.c. |
Index of Refraction |
1.694 |
LogP |
3.32 |
Melting Point |
150-151 °C |
Merck |
14,3329 |
Molecular Formula |
C18H16N2 |
Molecular Weight |
260.333 |
PSA |
24.06000 |
Solubility |
Solubility in water: none |
Stability |
Stable. Incompatible with strong acids, strong oxidizing agents |
Storage condition |
Store below +30°C. |
Vapour density |
Relative vapor density (air = 1): 9.0 |
Vapour Pressure |
6.35X10-9 mm Hg @ 25 °C |
Water Solubility |
<0.1 g/100 mL at 20 ºC |
Q&A for CAS 74-31-7
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 74-31-7
Pictograms |
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|---|---|
Signal Word |
Warning |
Hazard Statements |
H317 May cause an allergic skin reaction H341 Suspected of causing genetic defects H361 Suspected of damaging fertility or the unborn child H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects |
Safety Data Sheet |
Download COA of 74-31-7
Operate under the ISO 9001 system


