2-Phosphonobutyric acid triethyl ester
[CAS# 17145-91-4]

Identification

• Classification: Chemical reagent >> Organic reagent >> Phosphorous compound
• Name: 2-Phosphonobutyric acid triethyl ester
• Synonyms: Ethyl 2-(diethoxyphosphinyl)butanoate; Ethyl 2-(diethoxyphosphoryl)butanoate; Ethyl 2-(diethylphosphono)butyrate; NSC 22423; Triethyl 2-phosphonobutanoate; Triethyl 2-phosphonobutyrate; Triethyl alpha-phosphonobutyrate; alpha-Diethylphosphonobutanoic acid ethyl ester
• Molecular Formula: C₁₀H₂₁O₅P
• Molecular Weight: 252.24
• CAS Registry Number: 17145-91-4
• EC Number: 627-866-8

Properties

• Solubility: Sparingly soluble (11 g/L) (25 ºC), Calc.^*
• Density: 1.076±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Refractive index: 1.4296 (589.3 nm 20 ºC)^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** Fiszer, Bernard; Roczniki Chemii 1954, V28, P185-95.

Safety Data

• Hazard Symbols: Xi
• Risk Codes: R36/37/38
• Safety Description: S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315