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511218

Sigma-Aldrich

m-Toluidine

99%

Synonym(s):

3-Methylaniline

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About This Item

Linear Formula:
CH3C6H4NH2
CAS Number:
108-44-1
Molecular Weight:
107.15
Beilstein:
635944
EC Number:
203-583-1
MDL number:
MFCD00007808
UNSPSC Code:
12352100
PubChem Substance ID:
24873429
NACRES:
NA.22
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Assay

99%

refractive index

n20/D 1.567 (lit.)

bp

203-204 °C (lit.)

density

0.999 g/mL at 25 °C (lit.)

SMILES string

Cc1cccc(N)c1

InChI

1S/C7H9N/c1-6-3-2-4-7(8)5-6/h2-5H,8H2,1H3

InChI key

JJYPMNFTHPTTDI-UHFFFAOYSA-N

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General description

m-Toluidine (MT) is an aniline derivative that behaves as a fragile glass forming liquid. Its dielectric relaxation process,[1] glass transition relaxation,[2] relaxation modes[3] and slow secondary relaxation have been studied.[4] The analysis of MT crystalline phase by powder X-ray diffraction shows that it belongs to monoclinic space group, P21/c. Its structure is held together by N-H...N hydrogen bonds and van der Waals interactions.[5]

Application

m-Toluidine may be used to form pyrrole/m-toluidine copolymers via oxidative polymerization.[6]

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

186.8 °F - closed cup

Flash Point(C)

86 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT5470
MKCM4544
MKCK8425
MKCJ6604
MKCF8197

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Ab initio structure determination of m-toluidine by powder X-ray diffraction.
Rukiah M, et al.
Journal of Applied Crystallography, 37(3), 464-471 (2004)
Synthesis and characterization of pyrrole and m-toluidine copolymers.
Li XG, et al.
Synthetic Metals, 123(3), 435-441 (2001)
Andrea Mandanici et al.
The Journal of chemical physics, 122(8), 84508-84508 (2005-04-20)
The glass-former m-toluidine displays the characteristic properties of a fragile supercooled liquid, which suggest the existence of a slow secondary relaxation process. In view of the recently realized importance of such a secondary relaxation feature, we have conducted a dielectric
Relaxation modes in glass forming meta-toluidine.
Carpentier LRD and Descamps M.
J. Chem. Phys. , 121(13), 6470-6477 (2004)
The a-relaxation process in simple glass forming liquid m-toluidine. I. The temperature dependence of the dielectric response.
Cutroni M, et al.
J. Chem. Phys. , 114(16), 7118-7123 (2001)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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