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535834

Sigma-Aldrich

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

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100 G
$77.10

About This Item

Empirical Formula (Hill Notation):
C28H52N2O4
CAS Number:
Molecular Weight:
480.72
EC Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

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loss

0.7 wt. % volatility, 150-175°C

mp

82-85 °C (lit.)

transition temp

Tg >350 °C (dec)

solubility

acetone: 19 % (w/w) at 20 °C
ethyl acetate: 24 % (w/w) at 20 °C
methanol: 38 % (w/w) at 20 °C
chloroform: 45 % (w/w) at 20 °C
methylene chloride: 56 % (w/w) at 20 °C
H2O: insoluble <6 ppm at 20 °C

SMILES string

CC1(C)CC(CC(C)(C)N1)OC(=O)CCCCCCCCC(=O)OC2CC(C)(C)NC(C)(C)C2

InChI

1S/C28H52N2O4/c1-25(2)17-21(18-26(3,4)29-25)33-23(31)15-13-11-9-10-12-14-16-24(32)34-22-19-27(5,6)30-28(7,8)20-22/h21-22,29-30H,9-20H2,1-8H3

InChI key

XITRBUPOXXBIJN-UHFFFAOYSA-N

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This Item
535753194115535788
solubility

acetone: 19 % (w/w) at 20 °C, methanol: 38 % (w/w) at 20 °C, methylene chloride: 56 % (w/w) at 20 °C, ethyl acetate: 24 % (w/w) at 20 °C, H2O: insoluble <6 ppm at 20 °C, chloroform: 45 % (w/w) at 20 °C

solubility

H2O: insoluble <0.04 ppm at 20 °C, toluene: 20 wt. % at 20 °C, methylene chloride: 34 wt. % at 20 °C, chloroform: 35 wt. % at 20 °C

solubility

acetone: soluble 74.4 g/100ml at 20 °C(lit.), benzene: soluble 44.4 g /100ml at 20 °C(lit.), dioxane: soluble 65.6 g/100ml at 20 °C(lit.), hexane: soluble 0.4 g/100ml at 20 °C(lit.), isopropanol: soluble 21 g/100ml at 20 °C(lit.)

solubility

H2O: insoluble <0.01 ppm at 20 °C, acetone, chloroform, ethyl acetate, n-hexane, methylene chloride, and toluene: 50 wt. % at 20 °C

mp

82-85 °C (lit.)

mp

139-143 °C (lit.)

mp

90-94 °C (lit.)

mp

>350 °C (lit.)

loss

0.7 wt. % volatility, 150-175°C

loss

1.0 wt. % volatility, 264°C

loss

-

loss

-

transition temp

Tg >350 °C (dec)

transition temp

-

transition temp

-

transition temp

-

Quality Level

100

Quality Level

100

Quality Level

-

Quality Level

100

General description

Bis(2,2,6,6-tetramethyl-4-piperidyl) (T770) sebacate is a low molecular weight ultra violet (UV) hindered amine light stabilizer (HALS) made up of nitroxyl radicals. It acts as a heat controller that can react with phenolic antioxidants incorporated in polymers.[1][2][3]

Application

T770 can be used as a hindered amine UV stabilizer in plastic materials. It can be used in the manufacturing and packaging of pharmaceutical products.[4] Titanium oxide(TiO2)/T770 may be used in amine induced light stabilizers in the synthesis of recyclable water-based polyurethane with poly(oxytetramethylene)glycol (PTMG).[5]

pictograms

CorrosionEnvironment

signalword

Danger

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

>302.0 °F

flash_point_c

> 150 °C

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges


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Questions

1–2 of 2 Questions  
  1. 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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  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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