ChemicalBook > CAS DataBase List > 5-Methyl-1,3,4-oxadiazol-2(3H)-one

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

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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

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Safety

Hazard Codes: Xn
Risk Statements: 22
HazardClass: IRRITANT

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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.

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N-Bromosuccinimide Price

TRC

Product number: M336270
Product name: 5-methyl-2,3-dihydro-1,3,4-oxadiazol-2-one
Packaging: 50mg
Price: $45
Updated: 2021/12/16

Matrix Scientific

Product number: 063407
Product name: 5-Methyl-1,3,4-oxadiazol-2-ol
Packaging: 100mg
Price: $195
Updated: 2021/12/16

AK Scientific

Product number: 9464CN
Product name: 5-Methyl-1,3,4-oxadiazol-2(3H)-one
Packaging: 10g
Price: $676
Updated: 2021/12/16

American Custom Chemicals Corporation

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

American Custom Chemicals Corporation

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

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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

Acethydrazide

Preparation Products

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View Lastest Price from 5-Methyl-1,3,4-oxadiazol-2(3H)-one manufacturers

Shanghai Qianyi New Material Co., Ltd.

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

Zhuozhou Wenxi import and Export Co., Ltd

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

Zhuozhou Wenxi import and Export Co., Ltd

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

3069-67-8, 5-Methyl-1,3,4-oxadiazol-2(3H)-oneRelated Search:

5-Methyl-1,3,4-oxadiazol-2(3H)-one

5-methyl-1,3,4-oxadiazol-2-ol(SALTDATA: FREE)

5-Methyl-2,3-dihydro-1,3,4-oxadiazol-2-one

2,3-dihydro-5-Methyl-2-oxo-1,3,4-oxadiazole

Methyl oxadiazolidone

2-Methyl-1,3,4-Oxadiazol-5(4H)-One

1,3,4-Oxadiazol-2(3H)-one, 5-methyl-

5-methyl-3H,2H-1,3,4-oxadiazol-2-one

3069-67-8

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