3,3 -Thiodipropionic acid

Divalent Sulfur Derivatives. A diaLkyl ester of thiodipropionic acid (16) is capable of decomposing at least 20 moles of hydroperoxide (17). Some of the reactions contributing to the antioxidant activity of these compounds are shown in Figure 3. [Pg.227]

Dialkyl esters of 3,3 -thiodipropionic acid (53), cycHc phosphonites such as neopentylphenyl phosphite, derivatives of phosphaphenathrene-lO-oxide (54), secondary aromatic amines, eg, diphenylamine (55), and epoxidi2ed soybean oils (56) are effective stabili2ers for preventing discoloration of cellulose esters during thermal processing. [Pg.252]

Chromatographic methods were developed for the systematic determination of five classes of additives in PE for food packaging [170]. In Soxhlet extractions phenolic AOs and acid amides were determined by HPLC and CGC, respectively. Thiodipropionic acid esters were determined by HRGC as higher alcohols obtained after saponification of the extracts with KOH. Glycerol fatty acid esters and stearates were determined... [Pg.197]

Act to decompose hydroperoxides into stable molecules such as alcohols and ethers, before they can react with light to form free radicals. Main chemical classes are trivalent phosphorous compounds and thio-synergists (esters of thiodipropionic acid). Sulfur-based organic antioxidants decompose hydroperoxides by non-radical reactions. Typical peroxide decomposers are Irgafos 168, Ultranox 626, Irganox PS 800 and others. [Pg.782]

Dilauryl thiodipropionate Didodecyl 3,3 -thiodipropionate Thiobis(dodecyl propionate) Thiodipropionic acid dilauryl ester Bis(dodecyloxycarbonylethyl) sulfide... [Pg.797]

It is also possible to separate and detect antioxidants by SEC. This can be useful for the antioxidants that are strongly retained on Ci8 HLPC columns such as Irganox PS802 (thiodipropionic acid, dioctadecyl ester). [Pg.575]

PM 93120 00123-28-4 Irganox PS800 Thiodipropionic acid, didodecyl ester 5 514.41 Not examined but after Irganox 1076 (Note 1) 515.4 (+ve) Not examined... [Pg.580]

Thiocyanate solution, in silver quantitative analysis, 22 677 Thiocyanic acid, 23 678-681 Thiodiacids, 23 740 2,2 -Thiodiethanethiol, acid-catalyzed condensation of, 23 732 Thiodiols, 23 744 Thiodipropionic acid... [Pg.946]

Thiodipropionic acid, dilaurylthiodipropionic acid Tocopherols, tocopherol acetate... [Pg.292]

Propyl gallate, BHA, BHT, TBHQ, THBP, 4-hydroxymethyl-2,6-di-ferf-butylphenol, thiodipropionic acid and dilauiylthiodipropionic acid may be used provided that the total antioxidant content does not exceed 200 mg kg"1 of the fat or oil content when used according to good manufacturing practice. Anoxomer may be used provided that the total antioxidant content does not exceed 5000 mg kg 1 of the fat or oil content of the food. [Pg.294]

There are some differences in the regulation of US and EU antioxidants. The restrictions on synthetic antioxidants are more strict in the EU, e.g. TBHQ, THBP, anoxomer, ethoxyquin, guaiac resin and derivates of thiodipropionic acid are not permitted there. On the other hand, sulphur dioxide and sulphites, citric and tartaric acids and their salts and salts of EDTA are not listed as permitted antioxidants in the US. [Pg.294]

Thiodipropionic acid-bis-[3,5-bis-(2,3-dihydroxypropyl JV-methyl-carbamoyl)-2,4,6-triiodoanUide analogues... [Pg.117]

Thiodipropionic acid bis[3,5-bis(2,3-dihydroxypropyl-hf-methylcarbamoyl)-2,4,6-triiodoanilide] analogues... [Pg.118]

Hexacyanoferrates were immobilized on Au covered with SAM of 3,3 -thiodipropionic acid [86]. It has been found from voltammetric studies that the surface coverage of hexacyanoferrate is close to one monolayer and such an electrode exhibits very good surface redox behavior. Cheng et al. [87] have described the formation of an extremely thin multilayer film of polybasic lanthanide heteropolytungstate-molybdate complex and cationic polymer of quaternary poly(4-vinylpyridine), partially complexed with osmium bis(2,2 -bipyridine) on a gold electrode precoated with a cysteamine SAM. Consequently, adsorption of inorganic species might also be related to the properties of SAMs. This problem will be discussed in detail in a separate section later. [Pg.852]

Thiodipropionic acid esters have been prepared by the addition of hydrogen sulfide to the corresponding acrylic esters in the presence of basic catalysts with or without solvents. The ethyl ester has also been prepared by the treatment of ethyl jS-chloropropionate with sodium sulfide. ... [Pg.34]

Acidity (as thiodipropionic acid) Not more than 0.2% of 3,3 -thiodipropionic acid. [Pg.138]

SYNS DIETHYL SULFIDE-2,2 -DICARBOXYLIC ACID KYSELINA-P,P -THIODIPROPIONOVA (CZECH) TDPA 2-(2,3,5,6-TETRAMETHYLPHENOXY)-PROPIONIC ACID 4-THIAHEPTANEDIOIC ACID THIODIPROPIONIC ACID P,P -THIODIPROPIONIC ACID 3,3 -THIODIPROPIONIC ACID TYOXA... [Pg.177]

THIODIPROPIONIC ACID see BHMOOO 3,3 -THIODIPROPIONIC ACID see BHMOOO... [Pg.1909]

P, P -THIODIPROPIONIC ACID see BHMOOO THIODRIL see CBR675 THIOETHANOL see EMBIOO 2-THIOETHANOL see MCN250 THIOETHANOLAMINE see AJT250 THIOETHYL ALCOHOL see EMBIOO THIOETHYL ETHER see EPHOOO THIOFACO M-50 see EEC600 THIOFACO T-35 see TKP500 THIOFAN see TDC730... [Pg.1909]

Bifunctional stabilizers can be formed by means of polyesterification from diethylbis(4-hydroxy-3,5-di-tert-butylbenzyl)malonate and N,JV-bis(2-hydroxy-ethyl-2,2,6,6-tetramethyl-4-piperidylamine or from trihydroxy or tetrahydroxyben-zophenone and chlorides or esters of 3,3-thiodipropionic acid [193]. [Pg.108]

BHT propyl gallate methionine lecithin thiodipropionic acid citric acid phosphoric acid... [Pg.533]

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