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EC number: 239-387-8
CAS number: 15356-60-2
Only one PNECs is considered for the risk
assessment : PNEC water = 15.6 µg/l on L-Menthol which can be
extrapolated to D-menthol.
The others PNECs (soils, sediments,
secondary poisonning) should be higher due to the ready biodegradabitity
and the low adsorption potential (endpoint 5.4.1).
In the worst case we decided to take into
account the same values that we used for the L-Menthol. So we assume
that all the 1600 tons of
L-Menthol used as substance producted have a release into water of 0.02%
and the water flow is 15.107 liter/d and 200000 m3/d in fresh and sea
The table compile all the exposure levels from EUSES (2009 volume and
the generic use descriptors for fragrance compound (see annex)). The
estimated risk characterization is display in the result table for the
the worst-case calculation approach all ratios PEC/PNEC are below 1
local RCR estimation (for compounding assuming 0.02% of emission and
15.107as water flow)
Volune undiluted / Number of working days per year
Local emission fraction
Standard fresh water flow (1)
1608 / 330
Generic scenario for a large/medium site
Generic scenario for a small site
regional RCR assumption (for compounding assuming 0.002% of emission and
200.103m3 as water flow)
Sea water volume (m3)
<1608 / 330
<<1608 / 330
Based on the data for the D-Menthol:
- The substance is ready biodegradable
- Log Kow =3,15
- Fish : LC50 at 96h = 15,6 mg/l from L-Menthol with read-accross
- Daphnia : EC50 at 48h = 26,6 mg/l from L-Menthol with
- Algae (Desmodesmus subspicatus) : EC 50 at 72h = 21,4 mg/l with
a NOEC at 9,65 mg/l from L-Menthol with read-accross
- Inhibition of activated sludge respiration was determined : EC50
= 237 mg/L from L-Menthol with read-accross
The substance does not meet the classification criteria for acute
aquatic toxicity according to Regulation (EC) No. 1272/2008. As the
substance D-menthol is readily biodegradable as shown in various tests
and has a log Kow of 3.15 and thus less than 4 the substance also does
not require classification fro chronic aquatic toxicity according to the
criteria as laid down in Regulation (EC) No. 1272/2008.
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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