Urea,N-butyl-N-nitroso-

Modify Date: 2025-08-23 15:21:16

Urea,N-butyl-N-nitroso- structure	Common Name	Urea,N-butyl-N-nitroso-
	CAS Number	869-01-2	Molecular Weight	145.16000
	Density	1.22g/cm3	Boiling Point	218.9ºC at 760 mmHg
	Molecular Formula	C₅H₁₁N₃O₂	Melting Point	N/A
	MSDS	N/A	Flash Point	86.2ºC

Name	1-butyl-1-nitrosourea
Synonym	More Synonyms

Density	1.22g/cm3
Boiling Point	218.9ºC at 760 mmHg
Molecular Formula	C₅H₁₁N₃O₂
Molecular Weight	145.16000
Flash Point	86.2ºC
Exact Mass	145.08500
PSA	75.76000
LogP	1.54890
Index of Refraction	1.518

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YS3850000

CHEMICAL NAME :: Urea, 1-butyl-1-nitroso-

CAS REGISTRY NUMBER :: 869-01-2

BEILSTEIN REFERENCE NO. :: 1768951

LAST UPDATED :: 199612

DATA ITEMS CITED :: 53

MOLECULAR FORMULA :: C5-H11-N3-O2

MOLECULAR WEIGHT :: 145.19

WISWESSER LINE NOTATION :: ZVN4&NO

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 :: 400 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 :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1200 mg/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 :: 4867 mg/kg/24W-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Kidney, Ureter, Bladder - Kidney tumors Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg female 22 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Brain and Coverings - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 16512 mg/kg/50W-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - tumors Reproductive - Tumorigenic effects - other reproductive system tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 300 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg female 22 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Brain and Coverings - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 300 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg female 22 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Brain and Coverings - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg female 22 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Brain and Coverings - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2800 mg/kg/10W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Blood - leukemia

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 581 mg/kg/50W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 960 mg/kg/81W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - colon tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1400 mg/kg/5W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - tumors Blood - leukemia

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2800 mg/kg/10W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors Blood - leukemia

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 300 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia Skin and Appendages - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1050 mg/kg/5W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia Skin and Appendages - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3360 mg/kg/12W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - lymphoma, including Hodgkin's disease

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 250 mg/kg female 15 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Brain and Coverings - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2400 mg/kg/17W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia Skin and Appendages - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2505 mg/kg/24W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - leukemia

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 450 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Cardiac - tumors Skin and Appendages - tumors

TYPE OF TEST :: Morphological transformation

TYPE OF TEST :: DNA damage

TYPE OF TEST :: DNA damage

TYPE OF TEST :: Cytogenetic analysis

TYPE OF TEST :: Sister chromatid exchange

TYPE OF TEST :: Cytogenetic analysis

TYPE OF TEST :: Cytogenetic analysis

MUTATION DATA

TYPE OF TEST :: DNA damage

TEST SYSTEM :: Mammal - species unspecified Lymphocyte

DOSE/DURATION :: 10 mmol/L

REFERENCE :: CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1980- Volume(issue)/page/year: 5,621,1984

HS Code	2924199090

N-Butylurea

CAS#:592-31-4

Urea,N-butyl-N-...

CAS#:869-01-2

Literature: Casado, Iulio; Gonzalez-Alatorre, Guillermo; Izquierdo, Carmen; Brunner, Christian International Journal of Chemical Kinetics, 1996 , vol. 28, # 4 p. 307 - 313

N-Butylurea

CAS#:592-31-4

nitrous acid

CAS#:7782-77-6

Urea,N-butyl-N-...

CAS#:869-01-2

Literature: Werner Journal of the Chemical Society, 1919 , vol. 115, p. 1101

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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Synthetic Route

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.