2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (1:1)

Basic Information

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CAS Number

33973-59-0

Molecular Formula

C9H18ClNO

Molecular Weight

191.7 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Ketones

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Basic Physical Properties

Physical State

Powder

Melting Point

198 °C (dec.)

Boiling Point

205.6°C at 760 mmHg

Density

0.882

Flash Point

73.2°C

SMILES

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CC1(CC(=O)CC(N1)(C)C)C.Cl

InChI

InChI=1S/C9H17NO.ClH/c1-8(2)5-7(11)6-9(3,4)10-8;/h10H,5-6H2,1-4H3;1H

InChIKey

ZXNWYMNKYXUZGM-UHFFFAOYSA-N

LogP

1.9179

Topological Polar Surface Area

29.1 Å²

Hydrogen Bond Donor/Acceptor

1 / 2

Complexity

164

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

EINECS 251-769-6
33973-59-0
2,2,6,6-tetramethylpiperidin-1-ium-4-one;Triacetonamine Hydrochloride
2,2,6,6-Tetramethyl-4-piperidone HCl
Triacetonamine Hydrochloride
2,2,6,6-Tetramethyl-4-azacyclohexanone Hydrochloride
ZXNWYMNKYXUZGM-UHFFFAOYSA-N
NS00087496
2,2,6,6-Tetramethylpiperidin-4-one hydrochloride
2,2,6,6-Tetramethyl-4-piperidone (hydrochloride)
2,2,6,6-Tetramethyl-4-piperidone hydrochloride, 98%
WF9ZYV3UY7
TriacetonamineHydrochloride
DTXSID9067803
MFCD00012768
2,2,6,6-Tetramethyl-4-piperidonium chloride
4-Piperidinone, 2,2,6,6-tetramethyl-, hydrochloride
HY-N1131A
2,2,6,6-Tetramethyl-4-piperidone hydrochloride
J-019404
A822028
2,2,6,6-Tetramethyl-4-piperidone, hydrochloride
4-Piperidinone, 2,2,6,6-tetramethyl-, hydrochloride (1:1)
DS-18523
T1147
Triacetonamine (hydrochloride)
CS-0016420
FT-0639140
2,2,6,6-Tetramethyl-4-oxopiperidine hydrochloride
2,2,6,6-Tetramethyl-4-piperidinone hydrochloride
AKOS015999069

MDL Number

MFCD00012768

Customs Code

2933399090

FAQ

What are the physical and chemical properties of 2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0)?

2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0) is a crystalline compound with a molecular weight of approximately 228.7 g/mol. It has a solubility of about 60 g/L in water and is slightly soluble in ethanol. It is chemically stable but reacts with strong oxidizing agents. It is a common intermediate in organic synthesis and is used as a stabilizer in various applications.

How is 2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0) typically synthesized?

2,2,6,6-Tetramethyl-4-piperidinone hydrochloride is typically synthesized by the reaction of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) with hydrochloric acid. The process involves the protonation of TEMPO, followed by chlorination. Suitable catalysts and reagents include hydrochloric acid and chlorine gas, with high selectivity and moderate yield.

What industries use 2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0)?

2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0) is widely used in the pharmaceutical, polymer, and semiconductor industries. It serves as a stabilizer in pharmaceutical formulations, enhances the stability of polymers, and acts as a scavenger in semiconductor manufacturing processes.

What precautions should be taken when handling 2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0)?

When handling 2,2,6,6-Tetramethyl-4-piperidinone hydrochloride (CAS: 33973-59-0), it is essential to wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. Store in a cool, dry place away from direct sunlight. Use a fume hood for any manipulations, and follow proper spill procedures as outlined in the Safety Data Sheet (SDS).