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542-56-3

542-56-3 structure
542-56-3 structure
Name isobutyl nitrite
Synonyms EINECS 208-819-7
2-methylpropyl nitrite
Isobutylnitrite
Isobutyl nitrite
MFCD00002056
Nitrous acid, 2-methylpropyl ester
Density 1.0±0.1 g/cm3
Boiling Point 70.5±9.0 °C at 760 mmHg
Molecular Formula C4H9NO2
Molecular Weight 103.120
Flash Point -21.1±0.0 °C
Exact Mass 103.063332
PSA 38.66000
LogP 1.92
Vapour Pressure 140.0±0.1 mmHg at 25°C
Index of Refraction 1.416
Stability Stable. Incompatible with acids, alcohols, strong bases. Decomposes slowly in water. Flammable - incompatible with strong oxidizing agents. Note wide explosion limits. May be light and moisture sensitive. Oxidizer. May explode if heated.
Water Solubility <0.1 g/100 mL (19 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RA0805000
CHEMICAL NAME :
Nitrous acid, isobutyl ester
CAS REGISTRY NUMBER :
542-56-3
BEILSTEIN REFERENCE NO. :
1699518
LAST UPDATED :
199709
DATA ITEMS CITED :
21
MOLECULAR FORMULA :
C4-H9-N-O2
MOLECULAR WEIGHT :
103.14
WISWESSER LINE NOTATION :
ONO1Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human - man
DOSE/DURATION :
120 mg/kg
TOXIC EFFECTS :
Blood - methemoglobinemia-carboxyhemoglobin Vascular - BP lowering not characterized in autonomic section Cardiac - change in rate
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
410 mg/kg
TOXIC EFFECTS :
Behavioral - general anesthetic
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
777 ppm/4H
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex) Behavioral - excitement Lungs, Thorax, or Respiration - cyanosis
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
205 mg/kg
TOXIC EFFECTS :
Liver - other changes Blood - methemoglobinemia-carboxyhemoglobin
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1033 ppm/1H
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Lungs, Thorax, or Respiration - cyanosis Kidney, Ureter, Bladder - urine volume increased
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
184 mg/kg
TOXIC EFFECTS :
Liver - other changes
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
600 ppm/6H/2W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes Liver - other changes Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
150 ppm/6H/13W-I
TOXIC EFFECTS :
Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Blood - methemoglobinemia-carboxyhemoglobin Blood - changes in erythrocyte (RBC) count
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
400 ppm/7H/60D-I
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Endocrine - changes in spleen weight
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
800 ppm/6H/2W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - changes in lung weight Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
300 ppm/6H/14W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Blood - changes in erythrocyte (RBC) count Blood - changes in leukocyte (WBC) count
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
300 ppm/6.5H/18W-I
TOXIC EFFECTS :
Liver - changes in liver weight Blood - methemoglobinemia-carboxyhemoglobin Blood - changes in leukocyte (WBC) count
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
150 ppm/6H/2Y-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Lungs, Thorax, or Respiration - tumors
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
150 ppm/6H/2Y-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Lungs, Thorax, or Respiration - tumors

MUTATION DATA

TYPE OF TEST :
Mutation in mammalian somatic cells
TEST SYSTEM :
Rodent - mouse Lymphocyte
DOSE/DURATION :
75900 nmol/L
REFERENCE :
EMMUEG Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 1987- Volume(issue)/page/year: 14,115,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4720 No. of Facilities: 13 (estimated) No. of Industries: 1 No. of Occupations: 4 No. of Employees: 290 (estimated) No. of Female Employees: 13 (estimated)
Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger
Hazard Statements H225-H302-H332-H341-H350
Precautionary Statements P201-P210-P281-P308 + P313
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes F:Flammable
Risk Phrases R11;R20/22;R45;R68
Safety Phrases S53-S45
RIDADR UN 2351 3/PG 2
WGK Germany 3
RTECS RA0805000
Packaging Group II
Hazard Class 3
HS Code 2920909090
78-83-1 structure

78-83-1

~%

542-56-3 structure

542-56-3

Literature: Bulletin de la Societe Chimique de France, , vol. <4>25, p. 590 Chemische Berichte, , vol. 19, p. 917 Chemische Berichte, , vol. 20, p. 580
513-38-2 structure

513-38-2

~%

542-56-3 structure

542-56-3

625-74-1 structure

625-74-1

Literature: Journal of the American Chemical Society, , vol. 51, p. 280,284
78-77-3 structure

78-77-3

~%

542-56-3 structure

542-56-3

625-74-1 structure

625-74-1

Literature: Journal of the American Chemical Society, , vol. 51, p. 280,284
78-83-1 structure

78-83-1

7782-77-6 structure

7782-77-6

~%

542-56-3 structure

542-56-3

Literature: Ber., , vol. 19, p. 915
26397-34-2 structure

26397-34-2

~%

542-56-3 structure

542-56-3

78-84-2 structure

78-84-2

Literature: Journal of Physical Chemistry, , vol. 89, # 13 p. 2914 - 2916
HS Code 2920909090
Summary 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%
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