Diphenyl phosphite(CAS 4712-55-4)
| Purity | Grade | Package | Stock | Price | Quantity |
| 75% | RG | 25G | In Stock | 4 USD
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| 75% | RG | 100G | In Stock | 5 USD
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| 75% | RG | 500G | In Stock | 16 USD
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| 75% | RG | 2.5KG | In Stock | 47 USD
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| 75% | RG | 25KG | In Stock | 502 USD
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Available NMR Spectrum
Verified In Stock
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Quality System
Applications of 4712-55-4
Diphenyl phosphite is widely utilized across various industries due to its stabilizing properties:
- Polymer Industry: It serves as an antioxidant and stabilizer in polymer formulations, enhancing thermal oxidative stability.
- Lubricants: Used as an additive to improve the performance and longevity of lubricants.
- Chemical Intermediates: It acts as a precursor for synthesizing other organophosphorus compounds used in agriculture and pharmaceuticals
Physical and chemical properties of 4712-55-4
Boiling Point
218-219 °C26 mm Hg(lit.) BRN
2051909 Density
1.223 g/mL at 25 °C(lit.) Exact Mass
234.04500 Flash Point
350 °F Index of Refraction
n20/D 1.558(lit.) LogP
3.53410 Melting Point
12 °C(lit.) Molecular Formula
C12H11O3P Molecular Weight
234.18800 PSA
59.00000 Solubility
0.2566g/L at 25°C Storage condition
under inert gas (nitrogen or Argon) at 2-8°C Vapour density
8.1 (vs air) Vapour Pressure
5 mm Hg ( 140 °C)
Spectrums of 4712-55-4
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 4712-55-4
Q&A for CAS 4712-55-4
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.
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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.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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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.
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Download SDS of 4712-55-4
Pictograms |
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Signal Word |
Danger |
Hazard Statements |
H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H318 Causes serious eye damage H341 Suspected of causing genetic defects H373 May causes damage to organs through prolonged or repeated exposure H411 Toxic to aquatic life with long lasting effects |
Safety Data Sheet |
Download COA of 4712-55-4
Operate under the ISO 9001 system


