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1,2-Oxaphosphetane is a cyclic compound characterized by a four-membered ring containing one oxygen atom and one phosphorus atom. It is an important intermediate in the synthesis of various phosphorus-containing compounds, particularly in the preparation of phosphonates and phosphine oxides. The molecule has a strained ring structure due to the small size of the ring, which makes it highly reactive. This reactivity allows for the formation of a wide range of phosphorus derivatives through nucleophilic attack at the phosphorus atom, followed by ring-opening reactions. 1,2-Oxaphosphetanes are typically generated in situ and are not isolated due to their instability, but they play a crucial role in many synthetic transformations, particularly in the context of the Arbuzov reaction and the Pudovik reaction, which are used to prepare phosphonates and phosphine oxides, respectively.

287-36-5

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Basic information
1. Product Name: 1,2-Oxaphosphetane
2. Synonyms:
3. CAS NO:287-36-5
4. Molecular Formula: C2H5OP
5. Molecular Weight:
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 287-36-5.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 1,2-Oxaphosphetane(CAS DataBase Reference)
10. NIST Chemistry Reference: 1,2-Oxaphosphetane(287-36-5)
11. EPA Substance Registry System: 1,2-Oxaphosphetane(287-36-5)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 287-36-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 287-36-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,8 and 7 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 287-36:
(5*2)+(4*8)+(3*7)+(2*3)+(1*6)=75
75 % 10 = 5
So 287-36-5 is a valid CAS Registry Number.

287-36-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	oxaphosphetane

1.2 Other means of identification

Product number	-
Other names	1,2-Oxaphosphetane

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only.
Uses advised against	no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number	-
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:287-36-5 SDS

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