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EC number: 266-040-8
CAS number: 65997-04-8
Rosin Adducts and Rosin Adducts
Salts substances are UVCB substances made up of constituents
with different properties, which will behave differently when
released to the environment. The PBT assessment of Rosin Adducts
and Rosin Adducts Salts substances therefore considers the PBT
potential of each of the constituents, rather than the substance
as a whole. The constituents of each substance within Category 3
are expected to be similar and therefore a single PBT assessment
covering all of the constituents in this category is justified.
Detailed analysis of each individual
constituent within the category is not available and so a list
of constituents thought to be present has been developed from
information in the Substance Identity Profiles for each
substance. All identified constituents were assessed
individually for their PBT properties.
There is little experimental data on
Persistence (P) and Bioaccumulation (B) of the registered
substance or its individual constituents. However, in 2015, a
PACT assessment was published by the Finnish Competent
Authority, Tukes, which carried out a PBT assessment for
rosin, maleated (Tukes 2015). The assessment includes
information on both maleopimaric acid / anhydride
and fumaropimaric acid and therefore the assessment is relevant
for both fumarated and maleated substances within this category.
The PACT assessment reviewed both measured data and conducted
QSAR predictions for representative constituents. QSAR
predictions conducted using Episuite’s BIOWIN model for
constituents maleopimaric acid / anhydride
and fumaropimaric acid indicate the persistence criteria may be
met, and the substance is potentially persistent (P). This
assessment has been reviewed and updated to ensure all the
likely constituents have been covered and that
the EPIsuite Predictions are valid and up to date.
The blocks and their representative
constituents that were assessed are listed inTable1.
Following the Screening assessment
the data gathered suggests that whilst conclusions on
Persistence cannot be drawn for the constituents where data are
from QSARs alone, none of the constituents are expected to be
Bioaccumulative. It is noted that, even if the data on
bioaccumulation is exclusively from QSARs for this substance,
the models used are reliable, well documented and well known and
fit these types of constituents, even those substances that have
a higher Kow than the training data set. The Predicted BCF
values in both models were much lower than the 2000 L/kg
criterion for B in the Regulation and therefore there is high
confidence that there are no constituents of concern in this
Blocks present in this category and representative structures
for each block.
(4α,8α,12α,13R,14S)-16-isopropyl-17,19-dinoratis-15-ene-4,13,14-tricarboxylic acid EC No: 204-748-0 - (cis-maleopimaric tricarboxylic acid)
Non-reacted rosin acids
Delta Pimaric acid
Delta Isopimaric acid
16:0 fatty acid
16:1 fatty acid
18:1 fatty acid (9)
18:2 fatty acid (9,12)
18:3 fatty acid (5,9,12)
20:3 fatty acid (5,11,14 + 7,11,14)
High molecular weight fraction
Reaction of fumaric or maleic acid with levopimaric acid dimer; tetracarboxylic acid (open)form
Reaction of fumaric or maleic acid with levopimaric acid dimer; tricarboxylic acid (closed/anhydride) form
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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