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Key Documents

T1502

Sigma-Aldrich

Triethanolamine hydrochloride

≥99.5% (titration)

Synonym(s):

2,2′,2′′-Nitrilotriethanol hydrochloride, Tris(2-hydroxyethyl)amine hydrochloride

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About This Item

Linear Formula:
(HOCH2CH2)3N · HCl
CAS Number:
Molecular Weight:
185.65
Beilstein:
3909940
EC Number:
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:
NACRES:
NA.25

Quality Level

Assay

≥99.5% (titration)

form

crystalline powder

useful pH range

7.3-8.3

pKa (25 °C)

7.8

mp

177-179 °C (lit.)

solubility

water: 0.333 g/mL, clear, colorless

application(s)

diagnostic assay manufacturing

SMILES string

Cl.OCCN(CCO)CCO

InChI

1S/C6H15NO3.ClH/c8-4-1-7(2-5-9)3-6-10;/h8-10H,1-6H2;1H

InChI key

HHLJUSLZGFYWKW-UHFFFAOYSA-N

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General description

Triethanolamine (TEA) belongs to the family of ethanolamine. It includes the properties of both amines and alcohols. Addition of TEA to an acidic buffer facilitates the determination of fluoride in inorganic orthophosphates by using a fluoride-selective electrode.

Application

Triethanolamine hydrochloride has been used:
  • in the preparation of triethanolamine buffer
  • in rinsing the digested sections, prepared for in situ hybridization
  • as a component of solution A to prepare TA-complement haemolysis buffer (TA-CHB)

Biochem/physiol Actions

Triethanolamine hydrochloride acts as a surfactant or pH adjuster. It is also used as an emulsifier in cosmetics and several topical medications.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Safety assessment of triethanolamine and triethanolamine-containing ingredients as used in cosmetics
Fiume M, et al.
International Journal of Toxicology, 32(3\_suppl), 59S-83S (2013)
Optimal conditions for the kinetic assay of serum glutamate dehydrogenase activity at 37? C
Ellis G and Goldberg DM
Clinical Chemistry, 18(6), 523-527 (1972)
Gender difference in hypothalamic-pituitary-adrenal axis response to alcohol in the rat: activational role of gonadal steroids
Ogilvie KM and Rivier C
Brain Research, 766(1-2), 19-28 (1997)
Toxicology of mono-, di-, and triethanolamine
Reviews of Environmental Contamination and Toxicology, 1-86 (1997)
allergic Contact Dermatitis to Triethanolamine in a Child
Milanesi N, et al.
Pediatric Dermatology, 32(3), e112-e113 (2015)

Protocols

Objective: To standardize a procedure for the enzymatic assay of Aprotinin.

Measure hexokinase activity using a continuous spectrophotometric rate-determination assay at 340 nm, catalyzing D-hexose sugar phosphorylation using ATP.

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