21646-99-1
21646-99-1 structure
- Name: tetraethyl pyrophosphite
- Chemical Name: diethoxyphosphanyl diethyl phosphite
- CAS Number: 21646-99-1
- Molecular Formula: C8H20O5P2
- Molecular Weight: 258.18900
- Catalog: Organic raw materials Organic phosphine compound
- Create Date: 2018-07-18 17:46:08
- Modify Date: 2025-08-25 18:00:19
| Name | diethoxyphosphanyl diethyl phosphite |
|---|---|
| Synonyms |
EINECS 244-494-8
MFCD00009082 diphosphorous acid tetraethyl ester tetraethyldiphosphite TETRAethylpyROPHOSPHITE |
| Density | 1.057 g/mL at 25 °C(lit.) |
|---|---|
| Boiling Point | 237.9ºC at 760mmHg |
| Molecular Formula | C8H20O5P2 |
| Molecular Weight | 258.18900 |
| Flash Point | 115.2ºC |
| Exact Mass | 258.07900 |
| PSA | 73.33000 |
| LogP | 3.60280 |
| Vapour Pressure | 0.0674mmHg at 25°C |
| Index of Refraction | n20/D 1.434(lit.) |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Precautionary Statements | P261-P305 + P351 + P338 |
| Personal Protective Equipment | Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter |
| Hazard Codes | Xi: Irritant; |
| Risk Phrases | 36/37/38 |
| Safety Phrases | S24/25 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| Precursor 10 | |
|---|---|
| DownStream 10 | |
![1-[diethoxyphosphoryl(diethoxy)methoxy]ethane structure](https://image.chemsrc.com/caspic/130/17507-52-7.png)
![1-[bis(chloromethyl)phosphoryloxy]ethene structure](https://image.chemsrc.com/caspic/492/13274-84-5.png)
