2-Butene-1,4-diol

CAS No.：110-64-5

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2-Butene-1,4-diol Basic information

Product Name:	2-Butene-1,4-diol
Synonyms:	CIS-1,4-DIHYDROXY-2-BUTENE;butene-1,4-diol;1,4-buenedilo(liquid);2-BUTENE-1,4-DIOL, 95% (PREDOMINANTLY CI;2-Butene-1,4-Diol,~92%;(2E)-2-Butene-1,4-diol;agrisynthb2d;Butenediol
CAS:	110-64-5
MF:	C4H8O2
MW:	88.11
EINECS:	203-787-0
Product Categories:	BDO
Mol File:	110-64-5.mol

2-Butene-1,4-diol Chemical Properties

Melting point	4-10 °C(lit.)
Boiling point	235 °C(lit.)
density	1.07 g/mL at 25 °C(lit.)
refractive index	n20/D 1.479
Fp	>230 °F
pka	14.17±0.10(Predicted)
color	yellow
CAS DataBase Reference	110-64-5(CAS DataBase Reference)
NIST Chemistry Reference	2-Butene-1,4-diol(110-64-5)
EPA Substance Registry System	2-Butene-1,4-diol (110-64-5)

Safety Information

Hazard Codes	Xn
Risk Statements	22-36/37/38
Safety Statements	23-24/25-36-26
WGK Germany	3
RTECS	EM4970000
F	23
HS Code	29053990
Hazardous Substances Data	110-64-5(Hazardous Substances Data)

MSDS Information

Provider	Language
2-Butene-1,4-diol	English
ACROS	English
SigmaAldrich	English
ALFA	English

2-Butene-1,4-diol Usage And Synthesis

Description	2-Buten-1,4-diol is a palladium-containing compound that forms cross-links by reacting with an oxygen nucleophile. It reacts with nitrogen nucleophiles in the presence of hydrochloric acid to provide gamma-aminobutyric acid. This reaction mechanism is analogous to the way in which amines react with carboxylic acids to form amides. cis,trans-2-Buten-1,4-diol can be found in kinetic studies and its nmr spectra have been studied extensively.
Chemical Properties	Colorless to light yellow liquid
Uses	It is used to make agricultural chemicalsand the pesticide endosulfan; and as anintermediate for making vitamin B.
Application	2-Butene-1,4-diol has been used as a cross-linking agent for various polymers and is also able to form hydroxyl groups through allylation reactions.
Reactivity Profile	2-Butene-1,4-diol forms furan (narcotic)when treated with dichromate in acidic solution.Dehydration of the cis-isomer overacid catalysts yields 2,5-dihydrofuran (narcotic).Halogens form substitution or additionproducts, 4-halobutenols, or 2,3-dihalo-1,4-butanediol. These are toxic compounds.Ammonia or amine form pyrroline or itsderivatives (moderately toxic).
Health Hazard	2-Butene-1,4-diol is a depressant of the Centralnervous system. Inhalation toxicity isvery low due to its low vapor pressure. Theoral LD50 value in rats and guinea pigs is1.25 mL/kg. It is a primary skin irritant.
Fire Hazard	Noncombustible liquid; flash point (open cup) 128°C.

2-Butene-1,4-diol Preparation Products And Raw materials

Raw materials	Ammonium hydroxide-->Formaldehyde-->Nickel-->Calcium carbide-->2-Butyne-1,4-diol
Preparation Products	Thiosulfan-->trans-1,4-Dichloro-2-butene

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