Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 220-562-2
CAS number: 2814-77-9
cell density - limit test
Nominal concentration mg·L-1
Mean cell density in 1 mL
reduction of mean growth rate and percentual inhibition of mean yield –
curves and other details on results are in attached
test item, Pigment Red 4, was tested for growth inhibition on algae
test was performed according to method C.3. - Freshwater Algae and
Cyanobacteria, Growth Inhibition Test, Commission Regulation (EU)
preliminary test was performed in a range of the test item nominal
concentrations 1 – 100 mg·L-1.
highest inhibition of growth rate was 4.3 % and the highest inhibition
of yield was 18.8 % in the preliminary test. Based on low toxicity of
the test item found in the preliminary test (measured by growth rate),
the limit test was performed subsequently. Only the value of 72 hour –
ErC50 is needed for the classification and risk assessment of chemicals.
concentration of 100 mg·L-1 was tested in the limit test. The inhibition
of growth rate was 5.4 % and inhibition of yield was 18.3 %.
study was performed without the analytical determination of the test
item concentrations. The suitable analytical method for the
determination of the test item concentration is not available.
nominal concentrations were used for all evaluations and results.
hour – ErC50 > 100 mg·L-1 (nominal
hour – EyC50 > 100 mg·L-1 (nominal
hour – NOECr ˂ 1 mg·L-1 (nominal
hour – NOECy ˂ 1 mg·L-1 (nominal
determination of NOEC value was done by evaluation of the results from
preliminary test using statistical software ToxRat Professional Version
The inhibition of growth rate was 5.4 %
and the inhibition of yield was 18.3 % in the limit test. Therefore
exact value of ErC50 and EyC50 could not be calculated and the values of
EC are given in the form of a range.
The determination of NOEC value was done
by statistical software
ToxRat Professional Version 3.2.1
72 hour – ErC50 > 100 mg·L-1
72 hour – EyC50 > 100 mg·L-1
72 hour – NOECr < 1 mg· L-1 (nominal
72 hour – NOECy < 1 mg· L-1 (nominal
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.
Deze website maakt gebruik van cookies om het surfen zo aangenaam mogelijk te maken.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again