Tween 20
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Names
[ CAS No. ]:
9005-64-5
        
[ Name ]:
 Tween 20
        
[Synonym ]:
                
                Polysorbate 40 (NF)
                
                
            
                
                Hexofuranoside, 2-hydroxyethyl 2-deoxy-3,5-bis-O-(2-hydroxyethyl)-6-O-[2-[[(9E)-1-oxo-9-octadecen-1-yl]oxy]ethyl]-
                
                
            
                
                Polyoxyethylene (20) sorbitan monolaurate
                
                
            
                
                polyoxyethylene sorbitan monolaurate
                
                
            
                
                Tween.(TM). 20
                
                
            
                
                Polysorbate (INN)
                
                
            
                
                Tween 20
                
                
            
                
                hexofuranoside, 2-hydroxyethyl 2-deoxy-3,5-bis-O-(2-hydroxyethyl)-6-O-[2-[[(9E)-1-oxo-9-octadecenyl]oxy]ethyl]-
                
                
            
                
                2-[2-[3,4-bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate
                
                
            
                
                MDL 11,939
                
                
            
                
                2-Hydroxyethyl 2-deoxy-3,5-bis-O-(2-hydroxyethyl)-6-O-{2-[(9E)-9-octadecenoyloxy]ethyl}hexofuranoside
                
                
            
                
                EINECS 500-018-3
                
                
            
                
                Polysorbate 60 (NF)
                
                
            
                
                Polysorbate
                
                
            
                
                Polysorbate 20 (NF)
                
                
            
                
                monododecanoate
                
                
                
                
    
Chemical & Physical Properties
[ Density]:
1.1±0.1 g/cm3
            
[ Boiling Point ]:
695.8±55.0 °C at 760 mmHg
            
[ Molecular Formula ]:
C26H50O10
            
[ Molecular Weight ]:
604.813
            
[ Flash Point ]:
207.1±25.0 °C
            
[ Exact Mass ]:
604.418640
            
[ PSA ]:
133.14000
            
[ LogP ]:
5.37
            
[ Vapour Pressure ]:
0.0±5.0 mmHg at 25°C
            
[ Index of Refraction ]:
1.502
            
[ Storage condition ]:
0-6°C
            
[ Stability ]:
Stable. Incompatible with strong oxidizing agents.
            
[ Water Solubility ]:
100 g/L | 100 g/L
            
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
 - TR7400000
 
- CHEMICAL NAME :
 - Polysorbate 20
 
- CAS REGISTRY NUMBER :
 - 9005-64-5
 
- LAST UPDATED :
 - 199710
 
- DATA ITEMS CITED :
 - 21
 
- MOLECULAR FORMULA :
 - C58-H114-O26
 
- MOLECULAR WEIGHT :
 - 1227.72
 
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
 - Standard Draize test
 
- ROUTE OF EXPOSURE :
 - Administration onto the skin
 
- SPECIES OBSERVED :
 - Human
 
- REFERENCE :
 - 85DKA8 "Cutaneous Toxicity, Proceedings of the 3rd Conference, 1976," Drill, V.A., and P. Lazar, eds., New York, Academic Press, Inc. 1977 Volume(issue)/page/year: -,127,1977 ** ACUTE TOXICITY DATA **
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 36700 uL/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 21,348,1956
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Intraperitoneal
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 3850 mg/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 26,1581,1976
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Intravenous
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 770 mg/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 26,1581,1976
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - mouse
 
- DOSE/DURATION :
 - >33 gm/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 26,1581,1976
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Intraperitoneal
 
- SPECIES OBSERVED :
 - Rodent - mouse
 
- DOSE/DURATION :
 - 2640 mg/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 26,1581,1976
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Intravenous
 
- SPECIES OBSERVED :
 - Rodent - mouse
 
- DOSE/DURATION :
 - 1420 mg/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - RPOBAR Research Progress in Organic-Biological and Medicinal Chemistry. (New York, NY) V.1-3, 1964-72. Discontinued. Volume(issue)/page/year: 2,316,1970
 
- TYPE OF TEST :
 - LD50 - Lethal dose, 50 percent kill
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - hamster
 
- DOSE/DURATION :
 - 18 mL/kg
 
- TOXIC EFFECTS :
 - Details of toxic effects not reported other than lethal dose value
 
- REFERENCE :
 - FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 21,348,1956 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 832 gm/kg/59D-C
 
- TOXIC EFFECTS :
 - Gastrointestinal - hypermotility, diarrhea Related to Chronic Data - death
 
- REFERENCE :
 - ABBIA4 Archives of Biochemistry and Biophysics. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.31- 1951- Volume(issue)/page/year: 34,249,1951
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 931 gm/kg/70D-C
 
- TOXIC EFFECTS :
 - Gastrointestinal - hypermotility, diarrhea Liver - fatty liver degeneration Liver - other changes
 
- REFERENCE :
 - ABBIA4 Archives of Biochemistry and Biophysics. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.31- 1951- Volume(issue)/page/year: 34,249,1951
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - rat
 
- DOSE/DURATION :
 - 2756 gm/kg/21W-C
 
- TOXIC EFFECTS :
 - Gastrointestinal - hypermotility, diarrhea Kidney, Ureter, Bladder - other changes Blood - other changes
 
- REFERENCE :
 - FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 21,348,1956
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - mouse
 
- DOSE/DURATION :
 - 33250 gm/kg/95W-C
 
- TOXIC EFFECTS :
 - Blood - pigmented or nucleated red blood cells Blood - changes in erythrocyte (RBC) count
 
- REFERENCE :
 - TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 7,320,1965
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Oral
 
- SPECIES OBSERVED :
 - Rodent - hamster
 
- DOSE/DURATION :
 - 3276 gm/kg/39W-C
 
- TOXIC EFFECTS :
 - Gastrointestinal - other changes Liver - other changes Blood - changes in spleen
 
- REFERENCE :
 - FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 21,348,1956 ** REPRODUCTIVE DATA **
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Intraperitoneal
 
- DOSE :
 - 1 gm/kg
 
- SEX/DURATION :
 - female 9 day(s) after conception
 
- TOXIC EFFECTS :
 - Reproductive - Specific Developmental Abnormalities - musculoskeletal system
 
- REFERENCE :
 - ZNCBDA Zeitschrift fuer Naturforschung, Section C: Biosciences. (Verlag der Zeitschrift fuer Naturforschung, Postfach 2645, D-7400 Tuebingen, Fed. Rep. Ger.) V.29- 1974- Volume(issue)/page/year: 36,904,1981
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Intraperitoneal
 
- DOSE :
 - 2500 mg/kg
 
- SEX/DURATION :
 - female 9 day(s) after conception
 
- TOXIC EFFECTS :
 - Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
 
- REFERENCE :
 - ZNCBDA Zeitschrift fuer Naturforschung, Section C: Biosciences. (Verlag der Zeitschrift fuer Naturforschung, Postfach 2645, D-7400 Tuebingen, Fed. Rep. Ger.) V.29- 1974- Volume(issue)/page/year: 36,904,1981
 
- TYPE OF TEST :
 - TDLo - Lowest published toxic dose
 
- ROUTE OF EXPOSURE :
 - Intraperitoneal
 
- DOSE :
 - 1 gm/kg
 
- SEX/DURATION :
 - female 9 day(s) after conception
 
- TOXIC EFFECTS :
 - Reproductive - Specific Developmental Abnormalities - other developmental abnormalities
 
- REFERENCE :
 - TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 26(3),19A,1982 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X6874 No. of Facilities: 5475 (estimated) No. of Industries: 22 No. of Occupations: 48 No. of Employees: 161625 (estimated) No. of Female Employees: 125776 (estimated)
 
Safety Information
[ Personal Protective Equipment ]:
 Eyeshields;Gloves
            
[ Hazard Codes ]:
 Xi
            
[ Risk Phrases ]:
 22-36/37/38-37/38-41
            
[ Safety Phrases ]:
 S24/25
            
[ RIDADR ]: 
NONH for all modes of transport
            
[ WGK Germany ]: 
1
            
[ RTECS ]: 
TR7400000
            
[ HS Code ]:
 34021300
            
Customs
[ HS Code ]: 34021300
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