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50463

Sigma-Aldrich

4,N,N-Trimethylaniline

puriss., catalyst for peroxide polymerisations, ≥99.0% (GC)

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Synonym(s):
4-Dimethylaminotoluene, N,N-Dimethyl-p-toluidine
Linear Formula:
CH3C6H4N(CH3)2
CAS Number:
99-97-8
Molecular Weight:
135.21
Beilstein:
774409
EC Number:
202-805-4
MDL number:
MFCD00008316
UNSPSC Code:
12352100
PubChem Substance ID:
329757601

grade

catalyst for peroxide polymerisations
puriss.

Quality Level

100

vapor density

>1 (vs air)

Assay

≥99.0% (GC)

expl. lim.

7 %

refractive index

n20/D 1.546 (lit.)
n20/D 1.547

bp

211 °C (lit.)
90-92 °C/10 mmHg (lit.)

density

0.937 g/mL at 25 °C (lit.)

SMILES string

CN(C)c1ccc(C)cc1

InChI

1S/C9H13N/c1-8-4-6-9(7-5-8)10(2)3/h4-7H,1-3H3

InChI key

GYVGXEWAOAAJEU-UHFFFAOYSA-N

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Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Caution

may discolor to yellowish-green on storage

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

replaced by

Product No.
Description
Pricing

Pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Carc. 1B - Repr. 2 - Skin Sens. 1 - STOT RE 2 Oral

Target Organs

Reproductive organs

WGK

WGK 3

Flash Point(F)

168.8 °F

Flash Point(C)

76 °C

Regulatory Information

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Y Nomura et al.
Journal of materials science. Materials in medicine, 17(1), 29-32 (2006-01-04)
The polymerization initiators for resins cured using visible light usually consist of a photosensitizer, primarily camphorquinone (CQ), and a reducing agent, which is often a tertiary amine (DMPT, DMAEMA), while the initiator used for self-curing resins consists of benzoyl peroxide
Yi-Ching Li et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 84(1), 58-63 (2007-04-25)
9-Fluorenone (9F), the aromatic photosensitizer, is widely used as an initiator in visible-light (VL) cured resin systems. There is growing concern that 9F may produce genetic damage by inducing mutation. In this study, 9F in the presence or absence of
Chiemi Hirabayashi et al.
Dental materials journal, 21(4), 314-321 (2003-03-01)
Polymerization characteristics of poly (methyl methacrylate)(PMMA)/(methyl methacrylate) (MMA) resin initiated by tributylborane (TBB) were compared with those by benzoyl peroxide (BPO)/N,N-dimethyl-p-toluidine and camphorquinone (CQ)/N,N-dimethylaminoethyl methacrylate from the aspects of temporal changes of residual MMA and molecular weight up to 4
Yi-Ching Li et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 82(1), 23-28 (2006-10-17)
Camphorquinone (CQ) is widely used as an initiator in modern visible-light (VL) cured resin systems. CQ is also characterized as a potential allergenic compound. To date, there is growing concern that CQ may produce genetic damage by inducing mutation. In
Kyle Winter et al.
Biomaterials, 26(26), 5321-5329 (2005-04-09)
Previous investigations have found that visible-light (VL)-irradiated camphorquinone (CQ), in the presence of a tertiary amine (e.g., N,N-dimethyl-p-toluidine, DMT), generates reactive oxygen species and causes oxidative DNA damage in vitro. In this study, oxidative DNA damage produced by VL-irradiated CQ/DMT
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