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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

Currently viewing:

Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

Conclusion on P / vP properties: vP (and P)

The test item is not readily biodegradable (2% degradation in 28 days) andis therefore considered to be very Persistant (vP) based upon the information available.

Conclusion on B / vB properties: not B/vB

The substance is a substance of Unknown or Variable composition, Complex reaction products or Biological materials (UVCB) with multiple constituents and its water solubility and partition coefficient (Log Kow) were estimated to be < 1.19 x 10-6 mg/L and > 20, respectively, using the EPI Suite™ software.  The typical molecular mass of the substance (C54H108Mo2N2O3-xS5+x where x= 0-2) is 1188 Daltons.  These data indicate that the substance is large (> 500 Daltons), extremely low water soluble (< 0.1 mg/L), and very highly lipophilic (Log Pow > 5.6) molecule, and therefore, the substance is not bioavailable to fish.  In addition, repeated dose oral toxicity studies in rats did not show any systemic effects up to 1000 mg/kg/day, the highest doses tested in both 14-day oral toxicity study and combined repeated dose oral toxicity study with the reproductive/developmental toxicity screening test.  No information is currently available on possible degradation products produced in the gastrointestinal tract.

Conclusion on T properties: not T

No evidence of toxicity has been reported in any study on the test item

Likely routes of exposure:

The primary route of test item release release will be to wastewater.

It may be released to air through use processes, however, the vapour pressure is <10 Pa

at 18 °C.


Release to soil may occur from spreading of STP sludge’s, however this is advised against.