Sodium 2-(2-dodecyloxyethoxy)ethyl sulphate

Endpoint summary

Description of key information

The substance sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not show acute toxicity effect by the oral,dermal and inhalation route within the dose levels mentioned in the respective end points.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Reference

Endpoint:

acute toxicity: oral

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Justification for type of information:

QSAR prediction: migrated from IUCLID 5.6

Qualifier:

according to guideline

Guideline:

other: OECD Guideline 401 (Acute Oral Toxicity)

Principles of method if other than guideline:

Prediction is done using QSAR Toolbox version 3.1

GLP compliance:

no

Test type:

standard acute method

Species:

hamster

Strain:

other: cricetulus b. griseus

Sex:

not specified

Route of administration:

oral: gavage

Vehicle:

not specified

Control animals:

not specified

Sex:

not specified

Dose descriptor:

LD50

Effect level:

15 000 mg/kg bw

Based on:

test mat.

The prediction was based on dataset comprised from the following descriptors: LD50
Estimation method: Takes average value from the 5 nearest neighbours
Domain  logical expression:Result: In Domain

(((("a" or "b" or "c" or "d" or "e" or "f" )  and "g" )  and "h" )  and ("i" and "j" )  )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Alkoxy AND Ether AND Sulfate by Organic functional groups

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Alkoxy AND Ether AND Sulfate by Organic functional groups (nested)

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Aliphatic Carbon [CH] AND Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Miscellaneous sulfide (=S) or oxide (=O) AND Oxygen, aliphatic attach [-O-] AND Suflur {v+4} or {v+6} AND Sulfate, linear [-O-SO2-O-] AND Sulfite, linear [-OS(=O)O-] by Organic functional groups (US EPA)

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as Anion AND Cation AND Dialkylether AND Ether AND Sulfuric acid derivative by Organic functional groups, Norbert Haider (checkmol)

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as Group 1 - Alkali Earth Li,Na,K,Rb,Cs,Fr AND Group 14 - Carbon C AND Group 16 - Oxygen O AND Group 16 - Sulfur S by Chemical elements

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as Alkali Earth by Groups of elements

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as No superfragment by Superfragments

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as Discrete chemical AND Dissociating chemical by Substance Type

Domain logical expression index: "i"

Parametric boundary:The target chemical should have a value of log Kow which is >= -0.41

Domain logical expression index: "j"

Parametric boundary:The target chemical should have a value of log Kow which is <= 2.6

Interpretation of results:

not classified

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

The acute oral median lethal dose (LD50) of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate in hamster was found to be 15000 mg/kg of body weight. Acute toxicity of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate to hamster indicates that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the oral route within above mention dose.

Executive summary:

The acute oral median lethal dose (LD50) of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate in hamster was found to be 15000 mg/kg of body weight. Acute toxicity of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate to hamster indicates that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the oral route within above mention dose.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

LD50

Value:

15 000 mg/kg bw

Quality of whole database:

The data is K2 level as the data has been obtained from QSAR model considered by OECD.Based upon this available data it is expected that the test chemical sodium 2-(2-dodecyloxyethoxy)ethyl sulphate does not exhibit acute oral toxicity within the mentioned dose level.

Acute toxicity: via inhalation route

Link to relevant study records

Reference

Endpoint:

acute toxicity: inhalation

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Acute toxicity: via dermal route

Link to relevant study records

Reference

Endpoint:

acute toxicity: dermal

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Justification for type of information:

QSAR prediction: migrated from IUCLID 5.6

Qualifier:

according to guideline

Guideline:

other: OECD Guideline 402 (Acute Dermal Toxicity)

Principles of method if other than guideline:

Prediction is done using QSAR Toolbox version 3.1

GLP compliance:

no

Test type:

standard acute method

Species:

rabbit

Strain:

New Zealand White

Sex:

not specified

Type of coverage:

occlusive

Vehicle:

not specified

Control animals:

not specified

Sex:

not specified

Dose descriptor:

LD50

Effect level:

3 658.33 mg/kg bw

Based on:

test mat.

The prediction was based on dataset comprised from the following descriptors: LD50
Estimation method: Takes average value from the 5 nearest neighbours
Domain  logical expression:Result: In Domain

(((("a" or "b" or "c" or "d" or "e" or "f" )  and ("g" and ( not "h") )  )  and ("i" and ( not "j") )  )  and ("k" and "l" )  )

Domain logical expression index: "a"

Referential boundary: The target chemical should be classified as Alkoxy AND Ether AND Sulfate by Organic functional groups

Domain logical expression index: "b"

Referential boundary: The target chemical should be classified as Alkoxy AND Ether AND Sulfate by Organic functional groups (nested)

Domain logical expression index: "c"

Referential boundary: The target chemical should be classified as Aliphatic Carbon [CH] AND Aliphatic Carbon [-CH2-] AND Aliphatic Carbon [-CH3] AND Miscellaneous sulfide (=S) or oxide (=O) AND Oxygen, aliphatic attach [-O-] AND Suflur {v+4} or {v+6} AND Sulfate, linear [-O-SO2-O-] AND Sulfite, linear [-OS(=O)O-] by Organic functional groups (US EPA)

Domain logical expression index: "d"

Referential boundary: The target chemical should be classified as Anion AND Cation AND Dialkylether AND Ether AND Sulfuric acid derivative by Organic functional groups, Norbert Haider (checkmol)

Domain logical expression index: "e"

Referential boundary: The target chemical should be classified as Group 1 - Alkali Earth Li,Na,K,Rb,Cs,Fr AND Group 14 - Carbon C AND Group 16 - Oxygen O AND Group 16 - Sulfur S by Chemical elements

Domain logical expression index: "f"

Referential boundary: The target chemical should be classified as Alkali Earth by Groups of elements

Domain logical expression index: "g"

Referential boundary: The target chemical should be classified as No alert found by Protein binding by OASIS v1.1

Domain logical expression index: "h"

Referential boundary: The target chemical should be classified as Acylation OR Acylation >> Direct acylation involving a leaving group OR Acylation >> Direct acylation involving a leaving group >> N-acylamides by Protein binding by OASIS v1.1

Domain logical expression index: "i"

Referential boundary: The target chemical should be classified as AICS AND DSSTOX AND ECHA PR AND EINECS AND HPVC OECD AND REACH ECB AND TSCA AND US HPV Challenge Program by Inventory Affiliation

Domain logical expression index: "j"

Referential boundary: The target chemical should be classified as (N/A) OR Canada DSL OR COSING OR METI Japan by Inventory Affiliation

Domain logical expression index: "k"

Parametric boundary:The target chemical should have a value of log Kow which is >= -1.5

Domain logical expression index: "l"

Parametric boundary:The target chemical should have a value of log Kow which is <= 2.14

Interpretation of results:

not classified

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

The acute dermal median lethal dose (LD50) of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate in rabbit was found to be 3658.33 mg/kg bw.Acute toxicity of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate to rabbit by the dermal route indicates that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the dermal route within the doses mentioned.

Executive summary:

The acute dermal median lethal dose (LD50) of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate in rabbit was found to be 3658.33 mg/kg bw.Acute toxicity of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate to rabbit by the dermal route indicates that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the dermal route within the doses mentioned.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

LD50

Value:

3 658.33 mg/kg bw

Quality of whole database:

The data is K2 level as the data has been obtained from QSAR model considered by OECD and supported by another K2 study.

Additional information

Acute toxicity : oral

Based on studies of target substance CAS NO 3088-31-1 and read across reviewed for acute oral toxicity from reliable sources having Klimisch rating 2 and 4 considering the weight of evidence approach.

 

The summary of the results are presented below

Sr. No	End point	Value	Species	Remark
1	LD50	15000 mg/kgbw	Hamster	Predicted data of target chemical
2	LD50	>5000 mg/kgbw	Rat	Data from study report for target chemical
3	LD50	1820 mg/kgbw	Rat	Data from publication CAS NO 151-21-3
4	LD50	1288mg/kgbw	Rat	Data from publication CAS NO 151-21-3

 

Based on above table, endpoint value was found to vary between 1288 mg/kg bw to 15000 mg/kg bw which are much higher values. Since the LD50 for target chemical is greater than 2000 mg/kg bw/d which was the criteria for classification towards acute toxicity, it is concluded that the substance Sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the oral route.

 

 

Acute toxicity : inhalation

The test substance has very low vapor pressure , so the potential for the generation of inhalable forms is low, also the normal conditions of use of this substance will not result in aerosols, particles or droplets of an inhalable size, so exposure to humans via the inhalatory route will be unlikely to occur, and therefore no acute inhalation test was performed.

Acute toxicity :dermal

Based on studies of target substance CAS NO 3088-31-1 and read across alpha reviewed for acute dermal toxicity from reliable sources having Klimisch rating 2 considering weight of evidence approach

 The summary of the results are presented below

 

Sr. No	End point	Value	Species	Remark
1	LD50	3658.33 mg/kg bw	Rabbit	Predicted data for target chemical
2	LD50	580 mg/kg bw	Rabbit	Data from publication for CAS: 151-21-3

Based on the values summarized in above table, it was found that the endpoint values vary between 580 mg/L to 3658.33 mg/kg bw. Since the LD50 for target chemical is greater than 2000 mg/kg bw/d which was the criteria for classification towards acute toxicity, it is concluded that Sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the dermal route.

Justification for selection of acute toxicity – inhalation endpoint
The test substance has very low vapor pressure , so the potential for the generation of inhalable forms is low, also the normal conditions of use of this substance will not result in aerosols, particles or droplets of an inhalable size, so exposure to humans via the inhalatory route will be unlikely to occur, and therefore no acute inhalation test was performed.

Justification for selection of acute toxicity – dermal endpoint
The acute dermal median lethal dose (LD50) of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate in rabbit was found to be 3658.33 mg/kg bw.Acute toxicity of sodium 2-(2-dodecyloxyethoxy) ethyl sulphate to rabbit by the dermal route indicates that sodium 2-(2-dodecyloxyethoxy) ethyl sulphate does not exhibits acute toxicity by the dermal route within the doses mentioned.

Justification for classification or non-classification

The substance sodium 2-(2-dodecyloxyethoxy) ethyl sulphate do not show toxicity effect for oral,dermal and inhalation route and thus will not be considered for further classification.