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431-03-8

431-03-8 structure
431-03-8 structure

Name butane-2,3-dione
Synonyms butanedione
MFCD00008756
2,3-Butanedione
Butan-2,3-dione
EINECS 207-069-8
2,3-butandione
2,3-Butadione
Butane-2,3-dione
Biacetyl
Dimethylglyoxal
2,3-Diketobutane
Diacetyl
Density 1.0±0.1 g/cm3
Boiling Point 88.0±0.0 °C at 760 mmHg
Melting Point -4--2 °C
Molecular Formula C4H6O2
Molecular Weight 86.089
Flash Point 7.2±0.0 °C
Exact Mass 86.036781
PSA 34.14000
LogP -1.33
Vapour density 3 (vs air)
Vapour Pressure 62.3±0.1 mmHg at 25°C
Index of Refraction 1.381
Stability Stable. Flammable. Incompatible with acids, strong bases, metals, reducing agents, oxidizing agents. Protect from moisture and water. Note low flashpoint.
Water Solubility 200 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :
EK2625000
CHEMICAL NAME :
2,3-Butanedione
CAS REGISTRY NUMBER :
431-03-8
BEILSTEIN REFERENCE NO. :
0605398
LAST UPDATED :
199712
DATA ITEMS CITED :
12
MOLECULAR FORMULA :
C4-H6-O2
MOLECULAR WEIGHT :
86.10
WISWESSER LINE NOTATION :
1VV1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1580 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
400 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Behavioral - changes in motor activity (specific assay) Vascular - regional or general arteriolar or venous dilation
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
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 - guinea pig
DOSE/DURATION :
990 mg/kg
TOXIC EFFECTS :
Behavioral - ataxia Behavioral - coma Lungs, Thorax, or Respiration - dyspnea
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
48600 mg/kg/90D-I
TOXIC EFFECTS :
Liver - changes in liver weight Endocrine - changes in adrenal weight Blood - pigmented or nucleated red blood cells

MUTATION DATA

TEST SYSTEM :
Rodent - rat
DOSE/DURATION :
1500 mg/kg
REFERENCE :
JJCREP Japanese Journal of Cancer Research. (Elsevier Science Pub. BV, POB 211, 1000 AE Amsterdam, Netherlands) V.76- 1985- Volume(issue)/page/year: 76,809,1985 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84595 No. of Facilities: 126 (estimated) No. of Industries: 3 No. of Occupations: 6 No. of Employees: 1503 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84595 No. of Facilities: 185 (estimated) No. of Industries: 3 No. of Occupations: 13 No. of Employees: 3438 (estimated) No. of Female Employees: 1628 (estimated)
Symbol GHS02 GHS05 GHS06
GHS02, GHS05, GHS06
Signal Word Danger
Hazard Statements H225-H302-H315-H318-H331-H335
Precautionary Statements P210-P261-P280-P305 + P351 + P338-P311
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;Heavyweight Gloves;multi-purpose combination respirator cartridge (US);Safety Clothing;type ABEK (EN14387) respirator filter
Hazard Codes F:Flammable
Risk Phrases R11;R20/21/22;R36/38
Safety Phrases S9-S16-S26-S37/39-S36/37/39-S39
RIDADR UN 2346 3/PG 2
WGK Germany 2
RTECS EK2625000
Packaging Group II
Hazard Class 3
HS Code 2914190090
HS Code 2914190090
Summary 2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%