(2R)-2-methylbutane-1-thiol

Name	2-Methyl-1-butanethiol
Synonyms	FEMA 3303 2-methyl-1-butanethio 2-methylbutane-1-thiol 2-Methyl-1-butanethiol 2-Methylbutyl mercaptan 2-methyl-butane-1-thiol 1-Butanethiol, 2-methyl- 1-Mercapto-2-methylbutane (2R)-2-methylbutane-1-thiol (2S)-2-methylbutane-1-thiol 2-METHYL-1-BUTANETHIOL FEMA NO.--------
CAS	1878-18-8
EINECS	217-515-3
InChI	InChI=1/C5H12S/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3/t5-/m0/s1

Molecular Formula	C5H12S
Molar Mass	104.21
Density	0.848g/mLat 25°C(lit.)
Melting Point	-109.95°C (estimate)
Boling Point	116-117°C(lit.)
Flash Point	67°F
JECFA Number	515
Vapor Presure	41.4 mm Hg ( 37.7 °C)
Appearance	liquid (estimate)
pKa	10.41±0.10(Predicted)
Storage Condition	Flammables area
Sensitive	Air Sensitive
Refractive Index	n20/D 1.447(lit.)
Physical and Chemical Properties	Pale yellow lumpy solid, with sulfide odor, and broth fragrance when extremely thin. Melting point 118.2 ℃; Optical rotation [α]D23 3.21.

Risk Codes	R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
Safety Description	S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33 - Take precautionary measures against static discharges. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
UN IDs	UN 1111 3/PG 2
WGK Germany	3
TSCA	Yes
HS Code	29309090
Hazard Class	3
Packing Group	II
Toxicity	GRAS(FEMA)。

toxicity	GRAS(FEMA).
usage limit	FEMA: soft drinks, candy, baked goods, meat and soup, milk, dairy products, cereal products, 0.8mg/kg
maximum allowable use amount of food additives maximum allowable residue standard	The Chinese name of the additive the Chinese name of the additive is allowed to use the food Chinese name of the additive function maximum allowable use amount (g/kg) maximum allowable residue (g/kg)2-methyl -1-butanethiol food flavoring ingredients used in the preparation of flavors shall not exceed the maximum allowable use and the maximum allowable residue in GB 2760
Chemical properties	light yellow solid, with a bad smell of sulfide, in broth when very thin. Melting point 118.2 °c; Optical rotation [α]D23 3.21 °.
Use	GB 2760-1996 specifies temporary use of food flavors.
production method	conversion from 2-methyl-1-butylisothiourea picrate to BIS (2-methylbutyl) disulfide is then reduced from sodium metal in liquid ammonia.
NIST chemical information	information provided by: webbook.nist.gov (external link)
EPA chemical substance information	information is provided by: ofmpeb.epa.gov (external link)

Last Update：2024-04-09 02:00:02

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