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Butanoyl chloride

Butyryl chloride

CAS: 141-75-3

Molecular Formula: C4H7ClO

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Butanoyl chloride - Names and Identifiers

Name Butyryl chloride
Synonyms Butyryl chloride
BUTYRYL CHLORIDE
Butanoyl chloride
BUTYROYL CHLORIDE
BUTANOYL CHLORIDE
N-BUTYRYL CHLORIDE
N-BUTYROYL CHLORIDE
N-BUTANOYL CHLORIDE
BUTYRIC ACID CHLORIDE
Butyric acid chloride
N-BUTYRIC ACID CHLORIDE
CAS 141-75-3
EINECS 205-498-5
InChI InChI=1/C4H7ClO/c1-2-3-4(5)6/h2-3H2,1H3
InChIKey DVECBJCOGJRVPX-UHFFFAOYSA-N

Butanoyl chloride - Physico-chemical Properties

Molecular FormulaC4H7ClO
Molar Mass106.55
Density1.026g/mLat 25°C(lit.)
Melting Point−89°C(lit.)
Boling Point102°C(lit.)
Flash Point71°F
Water Solubilitydecomposes
Solubility Miscible with ether.
Vapor Presure39 hPa (20 °C)
Vapor Density3.7 (vs air)
AppearanceLiquid
ColorClear slightly yellow
Merck14,1598
BRN605395
Storage ConditionStore below +30°C.
SensitiveMoisture Sensitive
Explosive Limit2.5-7.3%(V)
Refractive Indexn20/D 1.412(lit.)
Physical and Chemical PropertiesCharacter: colorless transparent liquid with pungent odor of hydrochloric acid.
boiling point 102 ℃
freezing point -89 ℃
relative density 1.0277
refractive index 1.4121
flash point <21 ℃
solubility is miscible with ether.
UseUsed in medicine, pesticide, flame retardant, water purification agent

Butanoyl chloride - Risk and Safety

Risk CodesR11 - Highly Flammable
R34 - Causes burns
Safety DescriptionS16 - Keep away from sources of ignition.
S23 - Do not breathe vapour.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDsUN 2353 3/PG 2
WGK Germany1
RTECSEM0595000
FLUKA BRAND F CODES13
TSCAYes
HS Code2915 90 70
Hazard Class3
Packing GroupII

Butanoyl chloride - Upstream Downstream Industry

Raw MaterialsAcetone
Acetone
n-Butyric acid
n-Butyric acid
Downstream ProductsDecamethrin
Esfenvalerate

Butanoyl chloride - Nature

Open Data Verified Data

A colorless transparent liquid having an irritating odor of hydrochloric acid. The relative density was 1. 0277. Freezing point -89 °c. Boiling point 102 °c (look kPa). Refractive index 4121. Miscible with ether. Decomposition in water or alcohol. This product is flammable, corrosive and toxic. Flash point <21 °c.

Last Update：2024-01-02 23:10:35

Butanoyl chloride - Preparation Method

Open Data Verified Data

with butyric acid as raw material, with thionyl chloride chlorination (butyric acid: thionyl chloride -1:1.587) to butyryl chloride, reaction products often pressure distillation, collecting 95~115 deg C fraction, the finished product was obtained.

Last Update：2022-01-01 10:32:22

Butanoyl chloride - Use

Open Data Verified Data

It is used in organic synthesis, and is used in medicine to synthesize uric acid.

Last Update：2022-01-01 10:32:21

Butanoyl chloride - Safety

Open Data Verified Data
  • This product is toxic. Swallowing and absorption are highly toxic and have strong tissue irritation. Production equipment should be sealed to prevent leakage. The site should have good ventilation conditions. Operators should wear protective equipment.
  • packaging in glass bottles shall be closed. Storage in a cool and ventilated place, rain water, moisture, sun protection, anti-impact. According to the provisions of toxic substances storage and transportation.
Last Update：2022-01-01 10:32:22

Butanoyl chloride - Reference Information

freezing point -89 ℃
LogP0.51 at 25℃
NIST chemical information information provided by: webbook.nist.gov (external link)
EPA chemical substance information information provided by: ofmpeb.epa.gov (external link)
Application used in organic synthesis
butyryl chloride is the herbicide raffinidine, triphenyloxalone, an intermediate of thioxanthone.
organic synthesis intermediate, used in the preparation of styrene-butadiene and drug-induced uric acid, qiangtongidine and the intermediate 2-ethyl-1, 3-cyclopentanedione.
used in medicine, pesticide, flame retardant, water purifying agent, etc.
production method 1. From the reaction of butyric acid and thionyl chloride. Heating thionyl chloride to reflux, adding butyric acid Dropwise, adding it over about 4H, refluxing for 1H, distilling, collecting 95-115 ℃ fraction, redistilling once, collecting 101-105 ℃ fraction to obtain finished product, the yield was more than 70%. Phosphorus trichloride was also incorporated in the reaction in a yield of 75%. Industrial purity is greater than or equal to 99%. Raw material consumption quota: butyric acid 890kg/t, thionyl chloride 600kg/t.
The preparation method is to heat the thionyl chloride to reflux in the reactor, add n-butyric acid Dropwise, add it in about 4H, and reflux for 1H, the crude butyryl chloride fraction at 95-115 ° C. Was collected by atmospheric distillation and further distilled to obtain the product. Reaction equation: CH3CH2CH2COCl + SOCl2 → CH3CH2CH2COCl + HCl ++ SO2
spontaneous combustion temperature 280°C
toxic substance data information provided by: pubchem.ncbi.nlm.nih.gov (external link)
Last Update：2024-04-10 22:29:15
Butanoyl chloride
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Nantong Reform Petro-Chemical CO., LTD.
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CAS: 141-75-3
Tel: +86-17551318830
Email: r@reformchem.com­
Mobile: +86-17551318830
QQ: 3785839865 Click to send a QQ messageSend QQ message
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Product Name: Sodium Phenylbutyrate Impurity 8 Request for quotation
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052 Click to send a QQ message
Wechat: 15671228036
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Product Name: Butyryl chloride Request for quotation
CAS: 141-75-3
Tel: 17505222756
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Mobile: +86-17551318830
Wechat: 17505222756
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: Butyryl chloride Request for quotation
CAS: 141-75-3
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
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Mobile: +86-13651600618
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CAS: 141-75-3
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Email: info@yudiaochem.com
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View History
Butanoyl chloride
Raw Materials for Butanoyl chloride
Acetone
Acetone
n-Butyric acid
n-Butyric acid
Downstream Products for Butanoyl chloride
Decamethrin
Esfenvalerate
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