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535761

Sigma-Aldrich

Bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate

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About This Item

Empirical Formula (Hill Notation):
C44H84N2O6
CAS Number:
129757-67-1
Molecular Weight:
737.15
MDL number:
MFCD02094713
UNSPSC Code:
12162002
PubChem Substance ID:
24878101
NACRES:
NA.23

refractive index

n20/D 1.479 (lit.)

dynamic viscosity

3000 mPa.s(20 °C)(lit.)

transition temp

Tg >150 °C (dec)

solubility

H2O: <6 ppm at 20 °C

density

1.028 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCON1C(C)(C)CC(CC1(C)C)OC(=O)CCCCCCCCC(=O)OC2CC(C)(C)N(OCCCCCCCC)C(C)(C)C2

InChI

1S/C44H84N2O6/c1-11-13-15-17-23-27-31-49-45-41(3,4)33-37(34-42(45,5)6)51-39(47)29-25-21-19-20-22-26-30-40(48)52-38-35-43(7,8)46(44(9,10)36-38)50-32-28-24-18-16-14-12-2/h37-38H,11-36H2,1-10H3

InChI key

OSIVCXJNIBEGCL-UHFFFAOYSA-N

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General description

Bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate is a hindered amine light stabilizer (HALS) that is effective in retarding degradation through thermal and photo-oxidation process. It can be used in wood and plastic based coatings.

Application

Easily emulsified in water-borne systems. Miscible to >50% with xylene, MEK, and other paint solvents.
Hindered amine UV light stabilizer.
Low basicity reduces interactions with acidic paint ingredients particularly effective in coatings based on alkyds.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCK7360
MKBZ3482V
MKBG6049V
05414HI

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Desorption electrospray ionisation mass spectrometry reveals in situ modification of a hindered amine light stabiliser resulting from direct N-OR bond cleavage
Paine MRL, et al.
Analyst, 136(5), 904-912 (2011)
Direct detection of additives and degradation products from polymers by liquid extraction surface analysis employing chip-based nanospray mass spectrometry
Paine MRL, et al.
Rapid Communications in Mass Spectrometry, 26(4), 412-418 (2012)
Analysis of UV absorbers and stabilizers in polypropylene by liquid chromatography/atmospheric pressure chemical ionization-mass spectrometry.
Choi S and Jang J
Polymer Testing, 30(6), 673-677 (2011)

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