Registration Dossier
Registration Dossier
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EC number: 294-955-2 | CAS number: 91771-62-9 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Cyperus scariosus, Cyperaceae.
Endpoint summary
Administrative data
Description of key information
Biodegradation in water
On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the percentage degradation of the test chemical Cyperus scariosus, ext. can be expected to be range from 73-95, 68 and 100, respectively by BOD, TOC removal and GC parameter in 14-28 days. Thus, based on this, test chemical Cyperus scariosus, ext. is considered to be readily biodegradable in nature.
Additional information
Biodegradation in water
Data available for the structurally and functionally similar read across chemicals has been reviewed to determine the biodegradability of the test chemical Cyperus scariosus, ext. (CAS no. 91771-62-9). The studies are as mentioned below:
Biodegradation study was conducted for 28 days for evaluating the percentage biodegradability of test substance. The study was performed according to OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I) under aerobic conditions. Activated sludge was used as a test inoculums for the study. Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of test substance was determined to be 92-95 and 100% by BOD and GC parameter in 28 days. Thus, based on percentage degradation, test chemical is considered to be readily biodegradable in nature.
Another biodegradation study was conducted for 14 days for evaluating the percentage biodegradability of test substance. The study was performed according to OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I) under aerobic conditions. Activated sludge was used as a test inoculums for the study. Concentration of inoculum i.e, sludge used was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of test substance was determined to be 73, 68 and 100% by BOD, TOC removal and GC parameter in 14 days. Thus, based on percentage degradation, test chemical is considered to be readily biodegradable in nature.
On the basis of the experimental studies of the structurally and functionally similar read across chemical and applying the weight of evidence approach, the percentage degradation of the test chemical Cyperus scariosus, ext. can be expected to be range from 73-95, 68 and 100, respectively by BOD, TOC removal and GC parameter in 14-28 days. Thus, based on this, test chemical Cyperus scariosus, ext. is considered to be readily biodegradable in nature.
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