Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Adsorption / desorption

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
adsorption / desorption, other
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Study period:
2016-09-20
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
equivalent or similar to guideline
Guideline:
other: Epiwin (v4.00); KOCWIN Program (v2.00)
Version / remarks:
Epiwin (v4.00); KOCWIN Program (v2.00)
Deviations:
not applicable
Principles of method if other than guideline:
Epiwin (v4.00); KOCWIN Program (v2.00)
GLP compliance:
no
Type of method:
other: calculation
Media:
other: calculation
Computational methods:
KOCWIN Program (v2.00) Results:
==============================
SMILES : N=C(N)NC(=N)N(C)C
CHEM :
MOL FOR: C4 H11 N5
MOL WT : 129.17
--------------------------- KOCWIN v2.00 Results ---------------------------
Koc Estimate from MCI:
---------------------
First Order Molecular Connectivity Index ........... : 4.037
Non-Corrected Log Koc (0.5213 MCI + 0.60) .......... : 2.7041
Fragment Correction(s):
6 Nitrogen to Carbon (aliphatic) (-N-C).. : -1.2764
Corrected Log Koc .................................. : 1.4277
Estimated Koc: 26.77 L/kg <===========
Koc Estimate from Log Kow:
-------------------------
Log Kow (Kowwin estimate) ......................... : -2.64
Non-Corrected Log Koc (0.55313 logKow + 0.9251) .... : -0.5352
Fragment Correction(s):
6 Nitrogen to Carbon (aliphatic) (-N-C).. : -0.1307
Corrected Log Koc .................................. : -0.6659
Estimated Koc: 0.2158 L/kg <===========
Key result
Type:
log Koc
Remarks:
Koc Estimate from MCI
Value:
1.428
Key result
Type:
log Koc
Remarks:
Koc Estimate from Log Kow
Value:
-0.666
Remarks on result:
other: Log Kow (Kowwin estimate : -2.64
Conclusions:
Koc Estimate from MCI: logKoc = 1.4277
Koc Esteimate from logKow = -0,6659
Endpoint:
adsorption / desorption: screening
Data waiving:
other justification
Justification for data waiving:
the study does not need to be conducted because the substance has a low octanol water partition coefficient and the adsorption potential of this substance is related to this parameter

Description of key information

Koc Estimate from Log Kow (Epiwin v4.00)

Key value for chemical safety assessment

Koc at 20 °C:
0.216

Additional information

[LogKoc: -0.6659]