8.40130
4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl
(free radical) for synthesis
Synonym(s):
4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl, 4-Hydroxy-TEMPO
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About This Item
vapor pressure
<0.01 hPa ( 20 °C)
Quality Segment
assay
≥95.0% (GC)
form
crystals
autoignition temp.
260 °C (DIN 51794)
potency
1053 mg/kg LD50, oral (Rat)
pH
8.2 (20 °C, 20 g/L in H2O)
mp
67-71 °C
transition temp
flash point 146 °C (DIN 51758)
solubility
1670 g/L
storage temp.
2-30°C
SMILES string
[N+]1(C(CC(CC1(C)C)O)(C)C)[O-]
InChI
1S/C9H18NO2/c1-8(2)5-7(11)6-9(3,4)10(8)12/h7,11H,5-6H2,1-4H3
InChI key
UZFMOKQJFYMBGY-UHFFFAOYSA-N
Application
- Vitamin C Determination: A study that utilizes TEMPO for a simple and rapid determination of vitamin C content in various fruits, showcasing an economical approach to antioxidant testing (Ihara et al., 2017).
- Herbicide Development: A study on the synthesis of phenoxy carboxylic herbicides based on the piperidine scaffold, where TEMPO derivatives showed unexpected fungicidal activity (Zakrzewski & Krawczyk, 2014).
Analysis Note
Melting range (lower value): ≥ 67 °C
Melting range (upper value): ≤ 71 °C
Identity (IR): passes test
signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - STOT RE 2 Oral
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
294.8 °F - DIN 51758
flash_point_c
146 °C - DIN 51758
target_organs
Liver,spleen
hcodes
Certificates of Analysis (COA)
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