n-Butyl lactate

Modify Date: 2025-08-20 16:13:30

n-Butyl lactate Structure
n-Butyl lactate structure
 Common Name n-Butyl lactate
CAS Number 138-22-7 Molecular Weight 146.184
Density 1.0±0.1 g/cm3 Boiling Point 189.4±8.0 °C at 760 mmHg
Molecular Formula C7H14O3 Melting Point −28 °C(lit.)
MSDS Chinese USA Flash Point 69.4±0.0 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Names

Name Butyl lactate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.0±0.1 g/cm3
Boiling Point 189.4±8.0 °C at 760 mmHg
Melting Point −28 °C(lit.)
Molecular Formula C7H14O3
Molecular Weight 146.184
Flash Point 69.4±0.0 °C
Exact Mass 146.094299
PSA 46.53000
LogP 0.88
Vapour density 5.04 (vs air)
Vapour Pressure 0.2±0.8 mmHg at 25°C
Index of Refraction 1.432
Water Solubility 42 g/L (25 ºC)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
OD4025000
CHEMICAL NAME :
Lactic acid, butyl ester
CAS REGISTRY NUMBER :
138-22-7
BEILSTEIN REFERENCE NO. :
1721597
LAST UPDATED :
199712
DATA ITEMS CITED :
21
MOLECULAR FORMULA :
C7-H14-O3
MOLECULAR WEIGHT :
146.21
WISWESSER LINE NOTATION :
QY1&VO4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 17,727,1979 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 17,727,1979
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
12 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NPIRI* Raw Material Data Handbook, Vol.1: Organic Solvents, 1974. (National Assoc. of Printing Ink Research Institute, Francis McDonald Sinclair Memorial Laboratory, Lehigh Univ., Bethlehem, PA 18015) Volume(issue)/page/year: 1,15,1974
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
11 gm/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 17,727,1979
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>5 gm/kg
REFERENCE :
FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 17,727,1979 *** REVIEWS *** ACGIH TLV-TWA 30 mg/m3 (5 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 1 ppm (5 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,33,1971 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-BELGIUM:TWA 5 ppm (30 mg/m3) JAN 1993 OEL-DENMARK:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-FINLAND:TWA 1 ppm (6 mg/m3);STEL 3 ppm (18 mg/m3) JAN 1993 OEL-FRANCE:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 5 ppm (25 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 5 ppm (30 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 5 ppm (25 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO n-BUTYL LACTATE-air:10H TWA 5 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1128 No. of Facilities: 242 (estimated) No. of Industries: 8 No. of Occupations: 10 No. of Employees: 3107 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1128 No. of Facilities: 170 (estimated) No. of Industries: 9 No. of Occupations: 15 No. of Employees: 5342 (estimated) No. of Female Employees: 1381 (estimated)

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xi:Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S36-S37/39
WGK Germany 2
RTECS OD4025000
Packaging Group I; II; III
HS Code 2918110000

 Synthetic Route

 Customs

HS Code 2918110000
Summary 2918110000. lactic acid, its salts and esters. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

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 Synonyms

Propanoic acid, 2-hydroxy-, butyl ester
UNII:0UI63W814U
MFCD00004519
n-Butyl lactate
Lactic Acid Butyl Ester
Butyl 2-hydroxypropanoate
EINECS 205-316-4
Butyl 2-Hydroxypropionate
Butyl Lactate
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