butane-2,3-dione

Modify Date: 2025-08-21 15:10:27

butane-2,3-dione structure	Common Name	butane-2,3-dione
	CAS Number	431-03-8	Molecular Weight	86.089
	Density	1.0±0.1 g/cm3	Boiling Point	88.0±0.0 °C at 760 mmHg
	Molecular Formula	C₄H₆O₂	Melting Point	-4--2 °C
	MSDS	Chinese USA	Flash Point	7.2±0.0 °C
	Symbol	GHS02, GHS05, GHS06	Signal Word	Danger

Name	butane-2,3-dione
Synonym	More Synonyms

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)

butane-2,3-dione MSDS(Chinese)

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
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

Precursor 9
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DownStream 10
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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%

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butanedione

MFCD00008756

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EINECS 207-069-8

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Butane-2,3-dione

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: butane-2,3-dione
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: butane-2,3-dione
Price: ￥118.0/100ml ￥338.0/500ml
Purity: 98.0%
Delivery: Inquiry
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Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,3-Butanedione
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: butane-2,3-dione
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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butane-2,3-dione

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