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EC number: 259-915-0 | CAS number: 55947-46-1
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Estimation Programs Interface Suite (EPI suite, 2016) was run to predict the biodegradation potential of the test compound Sodium 2-propyne-1-sulphonate (CAS No. 55947 -46 -1). The screening test ready biodegradability of the substance was calculated using the software BIOWIN v4.10. The results indicate that Sodium 2-propyne-1-sulphonate is not expected to be readily biodegradable in nature.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The predicted data for the test compoundSodium 2-propyne-1-sulphonate (CAS No. 55947-46 -1) and the study for its read across substance were reviewed for the biodegradation end point which are summarized as below:
Estimation Programs Interface Suite (EPI suite, 2016) was run to predict the biodegradation potential of the test compound Sodium 2-propyne-1-sulphonate (CAS No. 55947 -46 -1). The screening test ready biodegradability of the substance was calculated using the software BIOWIN v4.10. The results indicate that Sodium 2-propyne-1-sulphonate is not expected to be readily biodegradable in nature.
A OECD screening test (GREIM H. et. al; 1994) was performed to determine the ready biodegradability of sodium 2–methylprop–2–ene–1–sulphonate.Only 19% degradation was observed for the test chemical. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
Biodegradation study [EUROPEAN COMMISSION European Chemicals Bureau (IUCLID dataset), 2000] was conducted for 3 hrs according to OECD Guideline 303 A "Simulation Test – Aerobic Sewage Treatment: Coupled Unit Test" for evaluating the percentage biodegradability of test substance Sodium 2-propyne-1-sulphonate. Initial test substance conc. used in the study was 10 mg/l. The percentage degradation of test substance was found to be 2.03% by DOC removal in 3 hrs. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
Biodegradation study [EUROPEAN COMMISSION European Chemicals Bureau (IUCLID dataset), 2000] was conducted for 28 days according to Guideline EU Method C.4-A (Determination of the "Ready" Biodegradability - Dissolved Organic Carbon (DOC) Die-Away Test) for evaluating the percentage biodegradability of test substance Sodium 2-propyne-1-sulphonate. Initial test substance conc. used in the study was 11 mg/l. The percentage degradation of test substance was found to be 3% by DOC removal in 28 days. Thus, the test chemical sodium 2–methylprop–2–ene–1–sulphonate was determined to be not readily biodegradable under the test conditions.
On the basis of above results for target and read across substance, it can be concluded that the test substance can be expected to be not readily biodegradable in nature.
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