Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,3-Butanedione,1,4-dibromo-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6305-43-7

6305-43-7 structure

Name: 2,3-Butanedione,1,4-dibromo-
Chemical Name: 1,4-Dibromo-2,3-Butanedione
CAS Number: 6305-43-7
Molecular Formula: C₄H₄Br₂O₂
Molecular Weight: 243.88100
Create Date: 2018-04-11 08:00:00
Modify Date: 2025-08-26 15:25:42

Name	1,4-Dibromo-2,3-Butanedione
Synonyms	MFCD00000205 1,4-dibromobutane-2,3-dione EINECS 228-615-1

Density	2.117g/cm3
Boiling Point	213ºC at 760 mmHg
Melting Point	117-119°C
Molecular Formula	C₄H₄Br₂O₂
Molecular Weight	243.88100
Flash Point	86ºC
Exact Mass	241.85800
PSA	34.14000
LogP	0.91440
Index of Refraction	1.539

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EK2850000

CHEMICAL NAME :: 2,3-Butanedione, 1,4-dibromo-

CAS REGISTRY NUMBER :: 6305-43-7

BEILSTEIN REFERENCE NO. :: 0970154

LAST UPDATED :: 199707

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C4-H4-Br2-O2

MOLECULAR WEIGHT :: 243.90

WISWESSER LINE NOTATION :: E1VV1E

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 9400 ug/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - other changes Gastrointestinal - other changes Nutritional and Gross Metabolic - other changes

REFERENCE :: JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 31,297,1963

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00598

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 21 mg/kg

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - acute pulmonary edema Liver - hepatitis (hepatocellular necrosis), diffuse

REFERENCE :: JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 31,297,1963

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi
Risk Phrases	R23/24/25;R34
Safety Phrases	S26-S36/37/39-S37/39-S27
RIDADR	1759
RTECS	EK2850000
Packaging Group	III
Hazard Class	8
HS Code	2914700090

431-03-8

~63%

6305-43-7

Literature: Liu, Qing-Xiang; Yao, Zhao-Quan; Zhao, Xiao-Jun; Zhao, Zhi-Xiang; Wang, Xiu-Guang Organometallics, 2013 , vol. 32, # 12 p. 3493 - 3501

6884-26-0

6305-43-7

Literature: Synthesis, , p. 236 - 253

186581-53-3

15219-34-8

6305-43-7

Literature: Chemische Berichte, , vol. 49, p. 1976

1113-59-3

526-78-3

110-15-6

79-08-3

Detail

Literature: International Journal of Chemical Kinetics, , vol. 32, # 7 p. 408 - 418

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

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