5-Methyl-1,3,4-oxadiazol-2(3H)-one
- Product Name
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one
- CAS No.
- 3069-67-8
- Chemical Name
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one
- Synonyms
- Methyl oxadiazolidone;2-Methyl-1,3,4-Oxadiazol-5(4H)-One;5-Methyl-1,3,4-oxadiazol-2(3H)-one;5-methyl-3H,2H-1,3,4-oxadiazol-2-one;1,3,4-Oxadiazol-2(3H)-one, 5-methyl-;5-Methyl-2,3-dihydro-1,3,4-oxadiazol-2-one;2,3-dihydro-5-Methyl-2-oxo-1,3,4-oxadiazole;5-methyl-1,3,4-oxadiazol-2-ol(SALTDATA: FREE)
- CBNumber
- CB91871604
- Molecular Formula
- C3H4N2O2
- Formula Weight
- 100.08
- MOL File
- 3069-67-8.mol
5-Methyl-1,3,4-oxadiazol-2(3H)-one Property
- Melting point:
- 112 °C
- Boiling point:
- 134 °C(Press: 14 Torr)
- Density
- 1.55±0.1 g/cm3(Predicted)
- storage temp.
- 2-8°C
- pka
- 6.34±0.70(Predicted)
- Appearance
- White to off-white Solid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- M336270
- Product name
- 5-methyl-2,3-dihydro-1,3,4-oxadiazol-2-one
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- 063407
- Product name
- 5-Methyl-1,3,4-oxadiazol-2-ol
- Packaging
- 100mg
- Price
- $195
- Updated
- 2021/12/16
- Product number
- 9464CN
- Product name
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one
- Packaging
- 10g
- Price
- $676
- Updated
- 2021/12/16
- Product number
- CHM0078460
- Product name
- 5-METHYL-1,3,4-OXADIAZOL-2(3H)-ONE
- Purity
- 95.00%
- Packaging
- 0.5G
- Price
- $726
- Updated
- 2021/12/16
- Product number
- CHM0078460
- Product name
- 5-METHYL-1,3,4-OXADIAZOL-2(3H)-ONE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $808.5
- Updated
- 2021/12/16
5-Methyl-1,3,4-oxadiazol-2(3H)-one Chemical Properties,Usage,Production
Chemical Properties
This product is solid and insoluble in water.
Synthesis
79-20-9
1068-57-1
3069-67-8
(2) Preparation of 5-methyl-1,3,4-oxadiazolone: 2000 mL of methyl acetate was added to a 5000 mL three-necked flask and 740 g of acetylhydrazine was added slowly under stirring conditions. The reaction mixture was cooled to below 0 °C, followed by the addition of 1680 g of sodium bicarbonate in batches. The reaction unit was sealed and the phosgene was continuously vented at a flow rate of 15 m3/h. After completion of the reaction, the solvent was removed by distillation and the resulting residue was crystallized at 0 °C. The white crystals were collected by filtration to give 988.2 g of the target product in 99% yield.
References
[1] Patent: CN103724327, 2017, B. Location in patent: Paragraph 0008; 0030; 0032
5-Methyl-1,3,4-oxadiazol-2(3H)-one Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 5-Methyl-1,3,4-oxadiazol-2(3H)-one manufacturers
- Product
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one 3069-67-8
- Price
- US $300.00-1300.00/g
- Min. Order
- 100g
- Purity
- 98%
- Supply Ability
- 10
- Release date
- 2023-05-08
- Product
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one 3069-67-8
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-10
- Product
- 5-Methyl-1,3,4-oxadiazol-2(3H)-one 3069-67-8
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-09