N-(1,3-Dimethylbutyl)-N
N-(1,3-Dimethylbutyl)-N
N-(1,3-Dimethylbutyl)-N
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OECD SIDS<br />
N-(1,3-DIMETHYLBUTYL)-N´-PHENYL-1,4-PHENYLENEDIAMINE<br />
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 793-24-8<br />
DATE: 11.05.2005<br />
Method : Used program: EPIWIN PCKOC<br />
First Order Molecular Connectivity Index: 6.843<br />
Non-Corrected log Koc: 4.2622<br />
Fragment Correction(s) for Nitrogen to non-fused aromatic ring: -0.7770<br />
Result: Corrected log Koc: 3.4852<br />
Remark : The Koc of this structure may be sensitive to pH! The estimated Koc<br />
represents a best-fit to the majority of experimental values, however, the<br />
Koc may vary significantly with pH.<br />
Result : For 4-hydroxydiphenylamine [phenol, 4-(phenylamino)-] the<br />
Koc (estimated) equals 3056<br />
Since the compound is an amine, Koc may be sensitive to pH!<br />
Reliability : (2) valid with restrictions<br />
Accepted calculation method<br />
Flag : Critical study for SIDS endpoint<br />
28.01.2005 (32)<br />
3.4 MODE OF DEGRADATION IN ACTUAL USE<br />
Memo : Reaction products of ozonation<br />
Method : A film of TS was aged for one week under 0.5 ppm ozone in<br />
air at 40°C, and the reaction products were identified<br />
Remark : In rubber articles, the antiozonant diffuses to the rubber<br />
surface and reacts with ozone ("scavenger-protected film"<br />
theory)<br />
Result : Ozonation occurs mainly with degradation of the alkyl<br />
portion of the TS. For a series of reaction products, the<br />
molecular formulas are given.<br />
Reliability : (2) valid with restrictions<br />
05.06.2001 (14)<br />
Memo : Transformation products after production and storage<br />
Method : Analysis of technical grade TS<br />
Result : As a main impurity, up to 5%<br />
1-phenylamino-4-(1,3-dimethylbutylamino)-3,6-bis(4-phenylami<br />
nphenylimino)-1,4-cyclohexadiene was identified<br />
Reliability : (2) valid with restrictions<br />
14.05.2001 (7)<br />
3.5 BIODEGRADATION<br />
Type : Aerobic<br />
Inoculum : activated sludge<br />
Concentration : 100 mg/l related to Test substance<br />
related to<br />
Contact time : 28 day(s)<br />
Degradation : 2 - 98 (±) % after 28 day(s)<br />
Result : other: Based on BOD, ca. 2 % of 6PPD was biodegraded; based on HPLC,<br />
ca. 92 % fo 6PPD was degraded<br />
Control substance : Aniline<br />
Kinetic : %<br />
%<br />
Deg. product :<br />
Method : OECD Guide-line 301 C "Ready Biodegradability: Modified MITI Test (I)"<br />
Year : 1994<br />
GLP : Yes<br />
UNEP PUBLICATIONS 67