N-(1,3-Dimethylbutyl)-N

OECD SIDS
N-(1,3-DIMETHYLBUTYL)-N´-PHENYL-1,4-PHENYLENEDIAMINE
2. PHYSICAL CHEMICAL DATA ID: 793-24-8
DATE: 11.05.2005
Flag : Critical study for SIDS endpoint
24.06.2003 (31)
Partition coefficient : octanol-water
Log pow : 2.46 at °C
pH value :
Method : other (calculated): LOGKOW version 1.66
Year : 2004
GLP :
Test substance : other TS: 4-Hydroxydiphenylamine
Method : LOGKOW fragment description for 4-hydroxydiphenylamine
Aromatic Carbons: 12x0.2940 = 3.5280
-OH [hydroxy, aromatic attached]: 1x-0.4802 = -0.4802
-N- [aliphatic N, two aromatic attach]: 1x-0.4657 = -0.4657
Ring reaction -N< / -OH(non-ortho): 1x-0.3510 = -0.3510
Equation Constant: 1X0.2290 = 0.2290
Sum of all values is Kow = 2.46
Remark : 4-Hydroxydiphenylamine:
A log Kow of 2.82 is cited from Hansch et al. 1995
Reliability : (2) valid with restrictions
Accepted calculation method
Flag : Critical study for SIDS endpoint
04.11.2004 (32)
Partition coefficient : octanol-water
Log pow : 4.77 at °C
pH value :
Method :
Year : 1986
GLP : no data
Test substance : other TS: Santoflex 13
Remark : Kow = 59000 +/- 34000
Results of tests done by Monsanto, also cited in Monsanto Material Safety
Data Sheet Santoflex 13, Antioxonant, 4186 (Information entered in IUCLID
Jan 14, 1993). This source is not available.
Reliability : (4) not assignable
Manufacturer data without proof
10.08.2003 (26)
2.6.1 SOLUBILITY IN DIFFERENT MEDIA
Solubility in : Water
Value : ca. 1 mg/l at 50 °C
pH value :
concentration : at °C
Temperature effects :
Examine different pol. :
pKa : at 25 °C
Description :
Stable :
Deg. product :
Method : other: modified OECD Guideline 105 "Water solubility-Flask Method"
Year : 1997
GLP : no data
Test substance : other TS: Vulkanox 4020
Test condition : - The solution containing excess 6PPD was stirred for 8 h instead of 24 h
54
UNEP PUBLICATIONS