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Methyl butyrate

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Origin: China

Cas No: 623-42-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 623-42-7 Formula: C5H10O2 Molecular Weight: 102.13200

Description

Methyl butyrate, also known under the systematic name methyl butanoate, is the methyl ester of butyric acid. Like most esters, it has a fruity odor, in this case resembling apples or pineapples. At room temperature, it is a colorless liquid with low solubility in water, upon which it floats to form an oily layer. Although it is flammable, it has a relatively low vapor pressure (40 mmHg at 30°C (86°F)), so it can be safely handled at room temperature without special safety precautions.
Methyl butyrate is present in small amounts in several plant products, especially pineapple oil. It can be produced by distillation from essential oils of vegetable origin, but is also manufactured on a small scale for use in perfumes and as a food flavoring.
Methyl butyrate has been used in combustion studies as a surrogate fuel for the larger fatty acid methyl esters found in biodiesel. However, studies have shown that, due to its short-chain length, methyl butyrate does not reproduce well the negative temperature coefficient (NTC) behaviour and early CO2 formation characteristics of real biodiesel fuels. Therefore, methyl butyrate is not a suitable surrogate fuel for biodiesel combustion studies.

Basic Info

Chemical Name	Methyl butyrate
Synonyms	Butanoic acid, methyl ester; methyl butanoate;
CAS No.	623-42-7
Molecular Formula	C5H10O2
Molecular Weight	102.13200
PSA	26.30000
LogP	0.95950

Properties

Appearance & Physical State	colorless clear liquid
Density	0.897
Boiling Point	102ºC
Melting Point	11.6ºC
Flash Point	12ºC
Refractive Index	1.385-1.39
Stability	Stable. Flammable. Incompatible with strong bases, strong oxidizing agents.
Storage Condition	Flammables area
Vapor Density	3.5 (vs air)
Vapor Pressure	40 mm Hg ( 30 °C)

Safety Info

RTECS	ET5500000
Hazard Class	3
Safety Statements	S16-S26
HS Code	2915600000
WGK Germany	2
Packing Group	II
RIDADR	UN 1237
Risk Statements	R11; R20; R36/37/38
Hazard Codes	F; Xi
Signal Word	Danger
Symbol	GHS02
Hazard Declaration	H225
Caution Statement	P210; P403 + P235

Synthesis Route

Methanol→oxane+2-METHYLTETRAHYDROPYRAN
Methanol+N-pivaloylbutyramide→Methyl butyrate+2,2-dimethylpropanamide
Methanol+tributyrin→monobutyrin+α,β-dibutyrine

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Administration onto the skin	Standard Draize test	Rodent - rabbit	500 mg/24H	-
Oral	LD50 - Lethal dose, 50 percent kill	Rodent - rat	>5 gm/kg	1.Details of toxic effects not reported other than lethal dose value
Inhalation	LC50 - Lethal concentration, 50 percent kill	Rodent - mouse	18 gm/m3/2H	1.Details of toxic effects not reported other than lethal dose value