2,3-Butanedione CAS NO.431-03-8

Min.Order Quantity:: 1 Kilogram

Purity:: 99%

Port:: China main port

Payment Terms:: L/C,D/A,D/P,T/T,MoneyGram,Other

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Product Details

Keywords

2,3-DIOXOBUTANE
2,3-DIKETOBUTANE
2,3-BUTANEDIONE

Quick Details

ProName: 2,3-Butanedione
CasNo: 431-03-8
Molecular Formula: C4H6O2
Appearance: liquid with a butter-like odour
Application: 431-03-8
DeliveryTime: 7-10days after payment
PackAge: as customer's requirement
Port: China main port
ProductionCapacity: 100-200 Kilogram/Month
Purity: 99%
Storage: 2-8°C
Transportation: air or sea express
LimitNum: 1 Kilogram

Superiority

2.material safety data sheet (msds)

3.route of synthesis (ros)
4.method of aanlysis(moa)
5.nuclear magnetic resonance(nmr)
6.packing pictures and loading video before loading
7.free sample
9.factory audit
10.strong after-sale service

our services

1. quality control, before shipment, free sample for test.
2. prompt shipment with professional documents
3. packing as your request, with photo before shipment
4. we can provide mixed containers with different mixed items in one container

hennan sunlake enterprise corporation is located in henan province , the central plain of china , which enjoys favorable geogeaphical position and convenient transportion, the com[any was established in june. 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .

sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.

we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team, who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.

we are taking great efforts to provide our customers with demanded goods and professional services, and continuously improve our core ability of competition and get the momentum for sustainable development, and finally make us being a reliable and professional wupplier in international market.

we welcome any serious inquiries from all customers of the world, and sincerely hope to cooperate with you for a brilliant future!

Details

product name:	2,3-butanedione
synonyms:	2,3-dioxobutane;2,3-diketobutane;2,3-butanedione;2,3-butadione;biacetyl;butane-2,3-dione;butanedione;fema 2370
cas:	431-03-8
mf:	c4h6o2
mw:	86.09
einecs:	207-069-8
product categories:	organics;biochemistry;reagents for oligosaccharide synthesis;ketone flavor;b;bioactive small molecules;building blocks;c3 to c6;carbonyl compounds;cell biology;chemical synthesis;ketones;organic building blocks
mol file:	431-03-8.mol

2,3-butanedione chemical properties

mp	-4--2 °c
bp	88 °c(lit.)
density	0.985 g/ml at 20 °c
vapor density	3 (vs air)
vapor pressure	52.2 mm hg ( 20 °c)
refractive index	n20/d 1.394(lit.)
fema	2370
fp	45 °f
storage temp.	2-8°c
water solubility	200 g/l (20 ºc)
merck	14,2966
brn	605398
stability:	stable. flammable. incompatible with acids, strong bases, metals, reducing agents, oxidizing agents. protect from moisture and water. note low flashpoint.
cas database reference	431-03-8(cas database reference)
nist chemistry reference	2,3-butanedione(431-03-8)
epa substance registry system	2,3-butanedione(431-03-8)

safety information

hazard codes	f,xn
risk statements	11-20/22-38-41-36/38-20/21/22-37/38
safety statements	9-16-26-37/39-36/37/39-39
ridadr	un 2346 3/pg 2
wgk germany	2
rtecs	ek2625000
f	13
hazardclass	3
packinggroup	ii
hs code	29141990
hazardous substances data	431-03-8(hazardous substances data)

msds information

provider	language
2,3-butanedione	english
sigmaaldrich	english
acros	english
alfa	english

2,3-butanedione usage and synthesis

chemical properties	liquid with a butter-like odour
usage	inactivates aminopeptidase-n.1 cyclocondensation with amines has been used to form triazine2 and pteridine ring systems.3 also used as a precursor to α-diones.4
general description	a clear colorless liquid with a strong chlorine-like odor. flash point 80°f. less dense than water. vapors heavier than air.
air & water reactions	highly flammable. soluble in water.
reactivity profile	2,3-butanedione is a flammable liquid, b.p. 88° c, moderately toxic. when heated to decomposition 2,3-butanedione emits acrid smoke and fumes [sax, 9th ed., 1996, p. 544].
health hazard	inhalation or contact with material may irritate or burn skin and eyes. fire may produce irritating, corrosive and/or toxic gases. vapors may cause dizziness or suffocation. runoff from fire control may cause pollution.
fire hazard	highly flammable: will be easily ignited by heat, sparks or flames. vapors may form explosive mixtures with air. vapors may travel to source of ignition and flash back. most vapors are heavier than air. they will spread along ground and collect in low or confined areas (sewers, basements, tanks). vapor explosion hazard indoors, outdoors or in sewers. runoff to sewer may create fire or explosion hazard. containers may explode when heated. many liquids are lighter than water.

2,3-butanedione preparation products and raw materials

preparation products	1,4-butanediol-->acetonylacetone-->ursodeoxycholic acid-->2-amino-6,7-dimethyl-4-hydroxypteridine-->tetramethylpyrazine-->clethodim-->2-amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine monohydrochloride-->dl-tyrosine-->3-hydroxy-2-butanone-->2,3-dimethylpyrazine-->pigment yellow 155-->diacetyl tartaric acid ester ofmono-and diglycerides-->starter distiliate
raw materials	etanol-->sulfuric acid -->sodium nitrite-->2-butanone-->selenium dioxide -->methyl vinyl ketone-->aroma-->1-buten-3-yne-->orris oil-->laurel oil from laurus nobilis-->angelica oil-->polishing compound,yellow