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872-50-4 C5H9NO 1-Methyl-2-pyrrolidinone CAS NO.872-50-4

Min.Order Quantity:: 1 Kilogram

Purity:: 99%

Port:: Shanghai/Tianjin/Qingdao

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

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Product Details

Keywords

NMP-T
NMP-EL
N-METHYLPYRROLIDNONE

Quick Details

ProName: 872-50-4 C5H9NO 1-Methyl-2-pyrrolidi...
CasNo: 872-50-4
Molecular Formula: C5H9NO
Appearance: colourless or light yellow liquid with...
Application: 872-50-4 ...
DeliveryTime: 7-10 days after payment
PackAge: As required
Port: Shanghai/Tianjin/Qingdao
ProductionCapacity: 100-200 Kilogram/Month
Purity: 99%
Storage: 2-8°C
Transportation: By air/sea/express
LimitNum: 1 Kilogram
Grade: Pharma Grade

Superiority

about certificate

1.certificate of analysis (coa)
2.material safety data sheet (msds)
3.route of synthesis (ros)
4.method of aanlysis(moa)
5.nuclear magnetic resonance(nmr)

about service

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. mixed containers with different mixed items in one container

about company

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:	1-methyl-2-pyrrolidinone
synonyms:	m-pyrol(r);n-methylpyrolidone;n-methylpyrrolid-2-one;n-methylpyrrolidinone;n-methylpyrrolidnone;n-methylpyrrolidone;nmp-t;nmp-el
cas:	872-50-4
mf:	c5h9no
mw:	99.13
einecs:	212-828-1
product categories:	solvent bottles;solvents;sure/seal bottles;amines;heterocycles;miscellaneous reagents;anhydrous solvents;solvent by application;alternative energy;amber glass bottles;analytical reagents;analytical/chromatography;chromasolv plus;chromatography reagents &;electrolytes;hplc &;hplc plus grade solvents (chromasolv);hplc/uhplc solvents (chromasolv);materials science;nowpak products;organic solvents;semi-bulk solvents;solvent bottles;solvent packaging options;uhplc solvents (chromasolv);nmr;spectrophotometric grade;spectrophotometric solvents;spectroscopy solvents (ir;uv/vis);gc headspace solvents;gc solvents;solvents for gc applications;acs and reagent grade solvents;acs grade;acs grade solvents;carbon steel cans with npt threads;heavy metals;solvents for lc-icp-ms;toxins (other than pesticide/drug residues);applications;beverage analysis;building blocks;c4 to c8;chemical synthesis;food &;gc-ms solvents;heterocyclic building blocks;icp-oes/-ms;pyrrolidines;reagents for inorganic trace analysis;solvents for metal speciation analysis;solvents for speciation analysis (lc-icp-ms);spectroscopy;trace analysis reagents &;anhydrous;products;returnable containers;sure/seal bottles;biotech;biotech solvents;chemical raw materials;pyrrolidones;nmp
mol file:	872-50-4.mol

1-methyl-2-pyrrolidinone chemical properties

mp	−24 °c(lit.)
bp	202 °c(lit.)
density	1.028 g/ml at 25 °c(lit.)
vapor density	3.4 (vs air)
vapor pressure	0.29 mm hg ( 20 °c)
refractive index	n20/d 1.479
fp	187 °f
storage temp.	2-8°c
color	≤20(apha)
water solubility	>=10 g/100 ml at 20 ºc
sensitive	hygroscopic
merck	14,6117
brn	106420
stability:	stable, but decomposes upon exposure to light. combustible. incompatible with strong oxidizing agents, strong acids, reducing agents, bases.
cas database reference	872-50-4(cas database reference)
nist chemistry reference	2-pyrrolidinone, 1-methyl-(872-50-4)
epa substance registry system	2-pyrrolidinone, 1-methyl-(872-50-4)

safety information

hazard codes	t,xi
risk statements	45-65-36/38-36/37/38-61-10-46
safety statements	41-45-53-62-26
wgk germany	1
rtecs	uy5790000
f	3-8-10
tsca	y
hazardous substances data	872-50-4(hazardous substances data)

chemical properties	it is transparently colorless oily liquid, slight odor of amine . it can be miscible with water, alcohols, ethers, esters, ketones, halogenated hydrocarbons, aromatics.
production methods	it is produced by the reaction of γ- butyrolactone with methylamine. the first step is that methylamine reacts with γ- butyrolactone to produce 4-hydroxy -n- methylbutanamide, and then the second step is further dehydration to produce 1-methyl-2-pyrrolidinone. two-step reaction can be conducted in a tubular reactor continuously, and the molar ratio of γ-butyrolactone to methylamine is 1: 1.15, pressure is about 6mpa and temperature is 250 ℃. after completion of the reaction, and then by concentration and vacuum distillation, product is derived. yield is 90%. if the production is conducted in tank reactor, dosage of methylamine is 1.5 to 2.5 times of the theoretical amount. for laboratory preparation, for example, 2 mols of γ- butyrolactone and 4 moles of liquid methylamine were added in 500ml autoclave vessel, heat sealed and held at 280 ℃ for 4h. after cooling, the release of excess methylamine, distillation, collecting 201-202 ℃ fraction, the product was about 180g, the yield of which was approximately 90%. raw material consumption (kg / g) forγ- butyrolactone and methylamine (40%) were 980 and 860.
category	flammable liquid
toxicity grading	poisoning
acute toxicity	oral - rat ld50: 3914 mg / kg, oral - mouse ld50: 5130 mg / kg
irritation data	eye - rabbit moderate 100 mg
flammability hazard characteristics	in case of fire, high temperature, strong oxidants, it is combustible. it is thermally decomposed to produce toxic nitric oxide gas.
storage feature	complete package, wrapped and laid carefully, warehouse ventilation, away from open flame, heat, and stored separately from oxidants
extinguishing agents	foam, carbon dioxide, dry power, sandy soil
chemical properties	colourless or light yellow liquid with an amine odour
usage	high purity grade for icp-ms detection
usage	it is a versatile industrial solvent. nmp is currently approved for use only in veterinary pharmaceuticals. the determination of the disposition and metabolism of nmp in the rat will contribute toward understanding the toxicology of this exogenous chemical which man may likely be exposed to in increasing amounts.
professional standards	twa 100 ppm (400 mg / cubic meter), stel 100 mg / cubic meter
general description	a clear colorless liquid with a "fishlike" odor. denser than water. flash point 199°f. contact may irritate skin, eyes and mucous membranes. may be toxic by ingestion.
air & water reactions	soluble in water.
reactivity profile	this amine is a very mild chemical base. 1-methyl-2-pyrrolidinone does tend to neutralize acids to form salts plus water. the amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
health hazard	inhalation of hot vapors can irritate nose and throat. ingestion causes irritation of mouth and stomach. contact with eyes causes irritation. repeated and prolonged skin contact produces a mild, transient irritation.
fire hazard	special hazards of combustion products: toxic oxides of nitrogen may be formed in fire.

1-methyl-2-pyrrolidinone preparation products and raw materials

raw materials

acetone-->methylamine-->gamma-butyrolactone-->butyramide

preparation products

ethyl 2-(4-chloroquinazolin-7-yloxy)acetate-->trimethylsilyl cyanide-->2-(trifluoromethyl)-4-isocyanatopyridine-->6-(trifluoromethyl)pyridine-3-carboxaldehyde-->1-[6-(trifluoromethyl)pyridin-2-yl]piperazine-->4-(pyrrolidin-1-ylmethyl)benzeneboronic acid, pinacol ester 97%1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl]pyrrolidine-->4-aminobutyric acid-->1-benzofuran-5-carbonitrile-->3-amino-6-chloropyridine-2-carboxylic acid-->2-chloro-6-trifluoromethylnicotinic acid-->4-(trifluoromethyl)nicotinic acid-->5-(trifluoromethyl)pyridine-2-carboxylic acid-->3,5-dimethoxyphenylacetic acid-->4-dimethylaminobutyric acid hydrochloride-->2-trifluoromethyl-6-pyridinecarboxylic acid-->1-(3-aminopropyl)-2-pyrrolidinone-->2-(diphenylphosphino)ethyltriethoxysilane-->3-amino-2-pyridinecarbonitrile-->3-amino-2-fluoro-4-picoline-->2-furonitrile-->2-trifluoromethyl-5-bromopyridine-->c-(1h-indol-5-yl)-methylamine-->thiophene-2-thiocarboxamide-->vat orange 9-->5-cyanoindole-->6-chloro-1h-indazol-3-amine-->2-(trifluoromethyl)-pyridine-4-carboxaldehyde

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