IUPAC Name: 1-Hydroxy-2,2,5,5-tetramethylpyrrolidine-3-carboxylic acid
Molecular Formula: C9H17NO3
EINECS: 218-448-2
Transport information: UY6705500
Molecular Weight: 186.26g/mol
Density: 1.129g/cm3
Melting Point: 200°C (dec.)
Boiling Point: 307.2°C at 760mmHg
Flash Point: 139.6°C
Storage temperature: 0-6°C
Chemical properties: yellow Solid
Freely Rotating Bonds: 2
Polar Surface Area: 38.77 Å2
Index of Refraction: 1.494
Molar Refractivity: 48.35 cm3
Molar Volume: 165.8 cm3
Polarizability: 19.16 ×10-24 cm3
Surface Tension: 39.9 dyne/cm
Enthalpy of Vaporization: 60.24 kJ/mol
Vapour Pressure: 0.000167 mmHg at 25°C
The Cas Register Number of 2,2,5,5-Tetramethyl-1-pyrrolidinyloxy-3-carboxylic acid is 2154-68-9.The chemical synonyms of 2,2,5,5-Tetramethyl-1-pyrrolidinyloxy-3-carboxylic acid (CAS NO.2154-68-9) are 3-Carboxy-proxyl ; Oprea1_453832 ; CID92169 ; NSC158842 ; 2,2,5,5-Tetramethyl-3-carboxypyrrolidinooxy ; 3-Carboxy-2,2,5,5-tetramethylpyrrolidinyloxyl ; 2,2,5,5-Tetramethyl-3-carboxypyrrolidine-N-oxyl ; 1-Pyrrolidinyloxy, 3-carboxy-2,2,5,5-tetramethyl- ; 2,2,5,5-Tetramethyl-1-pyrrolidinyl-oxy-3-carboxylic acid ; (+)-Hydroxypyrrolidine-3-carboxylic acid, 2,2,5,5,-tetramethyl- .Product categories of 2,2,5,5-Tetramethyl-1-pyrrolidinyloxy-3-carboxylic acid (CAS NO.2154-68-9) are Heterocyclic Compounds ; Analytical Chemistry ; ESR Spectrometry ; Spin Labels ; Heterocycles ; Spin Labeling Compounds .The molecular structure of 2,2,5,5-Tetramethyl-1-pyrrolidinyloxy-3-carboxylic acid (CAS NO.2154-68-9) is .
It has been used to determine distribution coefficients of neutral solubilizates in anionic micelles.
Reaction of 2,2,5,5-tetramethylpyrrolidin-1-oxyl-3-carboxylic acid (I) with 6-amino-2,2-dimethyl-1,3-dioxepan-5-ol (II) yields 2,2,5,5-tetramethylpyrrolidin-1-oxyl-3-carboxylic acid (5-hydroxy-2,2-dimethyl-1,3-dioxepan-6-yl)amide (III). Subsequent acidic hydrolysis gives 2,2,5,5-Tetramethyl-1-pyrrolidinyloxy-3-carboxylic acid (CAS NO.2154-68-9).
1. | ivn-rat LD50:2812 mg/kg | INVRAV Investigative Radiology. 19 (1984),549. |
Reported in EPA TSCA Inventory.
Moderately toxic by intravenous route. When heated to decomposition it emits toxic vapors of NOx.
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25
S24/25: Avoid contact with skin and eyes.
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