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1-Bromo-2-butanone

1-Bromo-2-butanone Structure
1-Bromo-2-butanone structure
CAS No.
816-40-0
Chemical Name:
1-Bromo-2-butanone
Synonyms
1-Brombutanon-(2);tl819;TL 819;1-bromobutanone;1-bromo-2-butanon;2-Oxobutyl bromide;1-Bromo-2-butanone;1-bromo-butan-2-one;Brommethylethylketon;2-Butanone, 1-broMo-
CBNumber:
CB9262467
Molecular Formula:
C4H7BrO
Molecular Weight:
151
MDL Number:
MFCD00000207
MOL File:
816-40-0.mol
MSDS File:
SDS
Last updated:2026-09-12 18:56:20
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1-Bromo-2-butanone Properties

Boiling point 105 °C150 mm Hg(lit.)
Density 1.479 g/mL at 25 °C(lit.)
refractive index n20/D 1.465(lit.)
Flash point 155 °F
storage temp. Keep Cold
form Liquid
Specific Gravity 1.479
color Colorless to light yellow
Sensitive Lachrymatory
BRN 741894
InChI InChI=1S/C4H7BrO/c1-2-4(6)3-5/h2-3H2,1H3
InChIKey CCXQVBSQUQCEEO-UHFFFAOYSA-N
SMILES C(Br)C(=O)CC
CAS DataBase Reference 816-40-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 4UPM4J7CVA
UNSPSC Code 12352100

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xn,Xi,F
Risk Statements  20/21/22-36/37/38
Safety Statements  26-27-36/37/39
RIDADR  1693
WGK Germany  3
RTECS  EL7000000
Hazard Note  Harmful/Irritant/Lachrymatory
HazardClass  6.1
PackingGroup  III
HS Code  29147000
Storage Class 10 - Combustible liquids
Hazard Classifications Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Limited Quantities 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
2
2 0

1-Bromo-2-butanone price More Price(27)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 243299 1-Bromo-2-butanone 95% 816-40-0 1g $80 2023-06-20 Buy
Sigma-Aldrich 243299 1-Bromo-2-butanone 95% 816-40-0 5g $175 2023-06-20 Buy
Biosynth FB75130 1-Bromo-2-butanone 816-40-0 0.5g $150 2026-06-04 Buy
Biosynth FB75130 1-Bromo-2-butanone 816-40-0 1g $150 2026-06-04 Buy
Biosynth FB75130 1-Bromo-2-butanone 816-40-0 2g $206.26 2026-06-04 Buy
Product number Packaging Price Buy
243299 1g $80 Buy
243299 5g $175 Buy
FB75130 0.5g $150 Buy
FB75130 1g $150 Buy
FB75130 2g $206.26 Buy

1-Bromo-2-butanone Chemical Properties, Uses, Production

Chemical Properties

colorless to light yellow liquid

Uses

1-Bromo-2-butanone (bromomethyl ethyl ketone) was used as a potential regulatory site-directed reagent for the residue C221 on pyruvate decarboxylase. It was also used as a reagent for aromatic bromination with sodium hydride in DMSO and in a microwave-assisted preparation of fused heterocycles.

Synthesis

Using methyl 3-oxopentanoate as the starting material, the key intermediate is obtained via chlorination and dealkylation reactions with a yield exceeding 70%. Subsequently, bromination yields 1-bromo-2-butanone with an overall yield exceeding 50%.

1-Bromo-2-butanone Preparation Products And Raw materials

Raw materials

Preparation Products

methyl 8-amino-2,3-dimethylimidazo[1,2-a]pyridine-6-carboxylate Methylisopseudoionone 8-chloro-2-ethylimidazo[1,2-a]pyrazine Ethyl 4,5-dimethyl-1,3-thiazole-2-carboxylate

1-Bromo-2-butanone Suppliers

Global Suppliers ( 128)
Supplier Tel Email Country ProdList Advantage
Shanghai C&W New Material Co., Ltd. 021-22062033 15921412618 sales@c-wnewmaterial.com China 210 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Shanghai Sinch Parmaceuticals Tech. Co. Ltd. +86-21-54098501 sales@sinch.com.cn China 11592 64
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Nanjing Vital Chemical Co., Ltd. Please Send Email 18652950785 chemweiao@163.com China 4368 65
Shanghai Sphchem Co., Ltd. 021-56491756 13512199871 2819742715@qq.com China 3994 55
Supplier Advantage
Shanghai C&W New Material Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
Energy Chemical 61
Wuhan Chemwish Technology Co., Ltd 56
Shanghai Sinch Parmaceuticals Tech. Co. Ltd. 64
Shanghai Hanhong Scientific Co.,Ltd. 64
Nanjing Vital Chemical Co., Ltd. 65
Shanghai Sphchem Co., Ltd. 55

View Latest Price from 1-Bromo-2-butanone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-BROMO-2-BUTANONE pictures 2026-09-02 1-BROMO-2-BUTANONE
816-40-0
 $30.00 1kg 99% Henan Fengda Chemical Co., Ltd
1-BROMO-2-BUTANONE pictures 2026-03-20 1-BROMO-2-BUTANONE
816-40-0
 $1.00 1kg 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
1-Bromo-2-butanone 95% pictures 2021-07-02 1-Bromo-2-butanone 95%
816-40-0
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd

1-Bromo-2-butanone Spectrum

1-BROMO-2-BUTANONE(816-40-0)1HNMR1-BROMO-2-BUTANONE(816-40-0)Raman1-BROMO-2-BUTANONE(816-40-0)FT-IR1-BROMO-2-BUTANONE(816-40-0)IR

816-40-0 (1-Bromo-2-butanone) Related Search:

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1-Bromopinacolone S-(-)-3-Bromocamphor O-BROMANIL 1，2-Dibromo-3-butanone D-3-Bromocamphor
2,4-Dibromo-2,4-dimethyl-3-pentanone 3-Bromo-2-butanone 1,4-Dibromo-2,3-butanedione 2,5-Dibromo-3,4-hexanedione, 95 1-Bromo-3,3,4,4,4-pentafluoro-2-butanone
1,1-Dibromopinacolone 1-Bromo-2-butanone 1-Adamantyl bromomethyl ketone

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1-bromo-2-butanon 1-bromo-butan-2-one 1-BroMo-2-butanone, 88% [stabilized], 88% 1-Bromo-2-butanone, technical, 85%, stabilized (BROMOMETHYL)ETHYL KETONE Brommethylethylketon TL 819 tl819 1-bromobutanone 1-Bromo-2-butanone,tech.85% 1-Bromo-2-butanone, stabilized, 90% 1-Bromo-2-butanone 90% min. 1-BROMO-2-BUTANONE: 90%, STABILIZED WITH CALCIUM CARBONATE 1-BROMO-2-BUTANONE: TECH., 85% 1-Bromo-2-butanone, tech. 85%, stab. with calcium carbonate 1-Bromo-2-butanone, 90% min.(stabilized w/ Calcium carbote) 1-Bromo-2-butanone,90%,stabilized 1-Bromo-2-butanone(stabilized with calcium carbonate) 1-Bromo-2-butanone,Bromomethyl ethyl ketone 1-Bromobutan-2-one 90% min. 1-BroMo-2-butanone, stabilized, 90% 5GR 2-Oxobutyl bromide 2-Butanone, 1-broMo- 1-Bromobutan-2-one 90% Bromomethyl ethyl ketone, 1-Bromo-2-oxobutane 1-Bromo-2-butanone,with calcium carbonate stabilizer 1-Bromobutan-2-one,80%(stabilized with CaCO3) 1-Brombutanon-(2) 1-Bromo-2-butanone 816-40-0 C4H7BrO C2H5COCH2Br Carbonyl Compounds C3 to C6 Building Blocks Organic Building Blocks Ketones Halogen compounds