Carbamic acid,N-butyl-N-nitroso-, ethyl ester

Modify Date: 2024-01-06 11:03:57

Carbamic acid,N-butyl-N-nitroso-, ethyl ester Structure
Carbamic acid,N-butyl-N-nitroso-, ethyl ester structure
Common Name Carbamic acid,N-butyl-N-nitroso-, ethyl ester
CAS Number 6558-78-7 Molecular Weight 174.19800
Density 1.08g/cm3 Boiling Point 207.3ºC at 760 mmHg
Molecular Formula C7H14N2O3 Melting Point N/A
MSDS N/A Flash Point 79.2ºC

 Names

Name ethyl N-butyl-N-nitrosocarbamate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.08g/cm3
Boiling Point 207.3ºC at 760 mmHg
Molecular Formula C7H14N2O3
Molecular Weight 174.19800
Flash Point 79.2ºC
Exact Mass 174.10000
PSA 58.97000
LogP 1.92640
Index of Refraction 1.468

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
EZ1275000
CHEMICAL NAME :
Carbamic acid, N-butyl-N-nitroso-, ethyl ester
CAS REGISTRY NUMBER :
6558-78-7
BEILSTEIN REFERENCE NO. :
1780198
LAST UPDATED :
199612
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
C7-H14-N2-O3
MOLECULAR WEIGHT :
174.23
WISWESSER LINE NOTATION :
ONN4&VO2

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 :
900 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 - mouse
DOSE/DURATION :
300 mg/m3/10M
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 :
500 mg/kg female 20 day(s) after conception
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Endocrine - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2240 mg/kg/8W-C
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
150 mg/kg female 15-21 day(s) after conception
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Reproductive - Tumorigenic effects - testicular tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
5300 mg/kg/20W-C
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Gastrointestinal - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5040 mg/kg/18W-C
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
5 gm/kg/16W-C
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5 gm/kg/16W-C
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Fibroblast
DOSE/DURATION :
100 umol/L
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 58,1635,1977

 Safety Information

HS Code 2928000090

 Synthetic Route

~%

Carbamic acid,N-butyl-N-nitroso-, ethyl ester Structure

Carbamic acid,N...

CAS#:6558-78-7

Literature: Nirdlinger; Acree American Chemical Journal, 1910 , vol. 43, p. 380

 Customs

HS Code 2928000090
Summary 2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

 Synonyms

N-Nitroso-N-butyl-urethan
N-Butyl-N-nitrosourethan
N-Butyl-N-nitrosourethane
butyl-nitroso-carbamic acid ethyl ester
N-n-Butyl-N-nitroso-urethan
N-Nitrosobutylurethane
1-Butyl-1-nitrosourethan
N-Nitroso-butylurethan
BNUR
TL 478
Butyl-nitroso-carbamidsaeure-aethylester
N-Butyl-N-nitroso ethyl carbamate
N-n-Butyl-N-nitrosourethane
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