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256226

Sigma-Aldrich

N,N-Dimethyloctylamine

95%

Synonym(s):

1-(Dimethylamino)octane, N-Octyldimethylamine, Adma 8, DMOA

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About This Item

Linear Formula:
CH3(CH2)7N(CH3)2
CAS Number:
7378-99-6
Molecular Weight:
157.30
Beilstein:
1698081
EC Number:
230-939-3
MDL number:
MFCD00009558
UNSPSC Code:
12352100
PubChem Substance ID:
24855508
NACRES:
NA.22
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vapor density

5.4 (vs air)

Quality Level

200

vapor pressure

0.8 mmHg ( 25 °C)

Assay

95%

form

liquid

refractive index

n20/D 1.424 (lit.)

bp

195 °C (lit.)

mp

−57 °C (lit.)

density

0.765 g/mL at 25 °C (lit.)

functional group

amine

SMILES string

CCCCCCCCN(C)C

InChI

1S/C10H23N/c1-4-5-6-7-8-9-10-11(2)3/h4-10H2,1-3H3

InChI key

UQKAOOAFEFCDGT-UHFFFAOYSA-N

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Application

N,N-Dimethyloctylamine has been employed:
  • as ion-pairing agent in quantitative estimation of thiazinamium methylsulphate in a pharmaceutical preparation by HPLC[1]
  • as counterion in mobile phase for separation of tetracycline, tetracycline analogs and their potential impurities by reversed-phase ion-pair chromatography[2]
  • as mobile phase in direct resolution and quantitation of (R)- and (S)-disopyramide in human plasma[3]
  • in study of chiral separations by complexation with proteins in capillary zone electrophoresis[4]

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

156.2 °F - closed cup

Flash Point(C)

69 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL6701
BCCL7100
BCCH5044
BCCJ3396
BCCG4839

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Journal of Chromatography A, 635, 119-119 (1993)
J Hermansson et al.
Journal of pharmaceutical sciences, 71(2), 222-229 (1982-02-01)
Methods are presented for the separation of tetracycline, tetracycline analogs, and their potential impurities by reversed-phase ion-pair chromatography. The mobile phase consisted of a phosphate buffer with tripropylamine or N,N-dimethyloctylamine as counterions and acetonitrile as the organic modifier. The chromatographic
T T Nikiforov et al.
Analytical biochemistry, 227(1), 201-209 (1995-05-01)
A reliable, simple, and cost-effective method for the immobilization of relatively short (12-30 mer) oligonucleotide probes to 96-well polystyrene plates was required in our laboratory for use in DNA hybridization-based assays. We compared three different approaches to achieve this immobilization.
E Smet et al.
Journal of pharmaceutical and biomedical analysis, 23(1), 175-183 (2000-07-18)
The phenothiazine derivative thiazinamium methylsulphate is a drug with antihistaminic and anticholinergic properties, often used in some types of obstructive lung diseases. Because there is a lack of chromatographic data available for its determination, the objective of the present investigation
J Hermansson et al.
Journal of chromatography, 336(2), 321-328 (1984-12-12)
The direct resolution and quantitation of (R)- and (S)-disopyramide, isolated from human plasma, was accomplished using a chiral alpha 1-acid glycoprotein column. A LiChrosorb RP-2 column (50 X 3.0 mm I.D.) was used as a precolumn. Phosphate buffer, pH 6.20
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Questions

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

    1 answer

    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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