1,4-Dichlorobut-2-ene

Modify Date: 2024-01-10 17:37:24

1,4-Dichlorobut-2-ene Structure
1,4-Dichlorobut-2-ene structure
Common Name 1,4-Dichlorobut-2-ene
CAS Number 764-41-0 Molecular Weight 124.996
Density 1.1±0.1 g/cm3 Boiling Point 155.5±0.0 °C at 760 mmHg
Molecular Formula C4H6Cl2 Melting Point 1-3 °C(lit.)
MSDS N/A Flash Point 54.4±0.0 °C

 Names

Name 1,4-Dichloro-2-butene
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 155.5±0.0 °C at 760 mmHg
Melting Point 1-3 °C(lit.)
Molecular Formula C4H6Cl2
Molecular Weight 124.996
Flash Point 54.4±0.0 °C
Exact Mass 123.984657
LogP 1.97
Vapour Pressure 3.9±0.2 mmHg at 25°C
Index of Refraction 1.459

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
EM4900000
CHEMICAL NAME :
2-Butene, 1,4-dichloro-
CAS REGISTRY NUMBER :
764-41-0
LAST UPDATED :
199806
DATA ITEMS CITED :
25
MOLECULAR FORMULA :
C4-H6-Cl2
MOLECULAR WEIGHT :
125.00
WISWESSER LINE NOTATION :
G2U2G

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
89 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
62 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
190 mg/kg
TOXIC EFFECTS :
Behavioral - muscle weakness Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
920 mg/m3
TOXIC EFFECTS :
Behavioral - muscle weakness Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
56 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
620 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
18200 ug/kg/26W-I
TOXIC EFFECTS :
Liver - liver function tests impaired Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
10900 ppb/6H/2W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Blood - changes in spleen Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
8700 ug/m3/17W-I
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS Liver - other changes
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 ppm/6H/82W-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Sense Organs and Special Senses (Olfaction) - tumors
TYPE OF TEST :
TC - Toxic concentration (other than lowest)
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 ppb/6H/82W-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Sense Organs and Special Senses (Olfaction) - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
750 ug/kg
SEX/DURATION :
male 75 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
5 ppm/6H
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
Sex chromosome loss and nondisjunction

MUTATION DATA

TEST SYSTEM :
Rodent - rat
DOSE/DURATION :
1700 ug/m3/30D (Intermittent)
REFERENCE :
ZKMAAX Zhurnal Eksperimental'noi i Klinicheskoi Meditsiny. Journal of Experimental and Clinical Medicine. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1962- Volume(issue)/page/year: 25,335,1985 *** REVIEWS *** ACGIH TLV-Suspected human carcinogen 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 ACGIH TLV-TWA 0.025 mg/m3 (0.005 ppm) (skin) 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-GERMANY;Carcinogen JAN 1993 OEL-RUSSIA:STEL 0.1 mg/m3;Skin JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84000 No. of Facilities: 5 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 20 (estimated)

 Safety Information

Hazard Codes T+: Very toxic;N: Dangerous for the environment;
Risk Phrases R10;R21;R25;R26;R34
Safety Phrases S53-S23-S26-S36/37/39-S45-S61-S60
RIDADR UN 3390 6.1/PG 1
WGK Germany 3
RTECS EM4903000
Packaging Group II
Hazard Class 6.1(a)

 Synthetic Route

 Synonyms

EINECS 203-779-7
MFCD00000988
1,4-Dichlorbut-2-en
trans-1,4-dichloro-2-butene
1,4-Dichlorobut-2-ene
but-2-ene, 1,4-dichloro-
1,4-Dichloro-2-butene
2-Butene, 1,4-dichloro-
2-Butylene dichloride