Cas no 5765-44-6 (5-methyl-1,2-oxazole)
5-Methyl-1,2-oxazole is a heterocyclic organic compound featuring a five-membered ring structure composed of three carbon atoms, one nitrogen atom, and one oxygen atom, with a methyl substituent at the 5-position. This compound serves as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and specialty chemicals. Its oxazole core is valued for its stability and reactivity, enabling functionalization at multiple sites. The methyl group enhances lipophilicity, potentially improving bioavailability in drug design. Suitable for use in cyclization, condensation, and cross-coupling reactions, 5-methyl-1,2-oxazole offers a balance of reactivity and selectivity for targeted synthetic applications.
5-methyl-1,2-oxazole structure
Product Name:5-methyl-1,2-oxazole
CAS No:5765-44-6
MF:C4H5NO
MW:83.0886008739471
MDL:MFCD00003152
CID:46167
PubChem ID:87572812
Update Time:2025-05-28
5-methyl-1,2-oxazole Chemical and Physical Properties
Names and Identifiers
-
- 5-Methylisoxazole
- 5-methyl-1,2-oxazole
- NSC 52269
- Isoxazole, 5-methyl-
- YC2P4IBF1E
- 5-METHYL ISOXAZOLE
- C4H5NO
- AGQOIYCTCOEHGR-UHFFFAOYSA-N
- 5-methylisoxazol
- 5-methyl-isoxazole
- NSC52269
- PubChem8634
- 5-Methylisoxazole, AldrichCPR
- BCP11243
- STR04226
- SB11391
- VO10099
- BC226936
- Q959
- NS00033766
- SY038700
- AI3-34641
- W-105452
- InChI=1/C4H5NO/c1-4-2-3-5-6-4/h2-3H,1H
- EN300-70738
- M0813
- EINECS 227-289-8
- DTXSID4064000
- UNII-YC2P4IBF1E
- A8215
- NSC-52269
- MFCD00003152
- F0001-2561
- AM20100414
- AKOS006230756
- FT-0620661
- CS-0085310
- BP-10753
- 5765-44-6
- F14932
- DB-003540
- DTXCID0042248
-
- MDL： MFCD00003152
- Inchi： 1S/C4H5NO/c1-4-2-3-5-6-4/h2-3H,1H3
- InChI Key： AGQOIYCTCOEHGR-UHFFFAOYSA-N
- SMILES： O1C(=CC=N1)C
Computed Properties
- Exact Mass: 83.03710
- Monoisotopic Mass: 83.037
- Isotope Atom Count: 0
- Hydrogen Bond Donor Count: 0
- Hydrogen Bond Acceptor Count: 2
- Heavy Atom Count: 6
- Rotatable Bond Count: 0
- Complexity: 46.8
- Covalently-Bonded Unit Count: 1
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count : 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Surface Charge: 0
- Tautomer Count: nothing
- XLogP3: 0.5
- Topological Polar Surface Area: 26
Experimental Properties
- Color/Form: Not determined
- Density: 1.018?g/mL?at 25?°C(lit.)
- Boiling Point: 122°C(lit.)
- Flash Point: Fahrenheit: 82.4 ° f
Celsius: 28 ° c - Refractive Index: n20/D 1.438(lit.)
- PSA: 26.03000
- LogP: 0.98300
- Solubility: Not determined
5-methyl-1,2-oxazole Security Information
-
Symbol:
- Prompt：warning
- Signal Word：Warning
- Hazard Statement： H226
- Warning Statement： P210-P233-P240-P241+P242+P243-P280-P303+P361+P353-P370+P378-P403+P235-P501
- Hazardous Material transportation number：1993
- WGK Germany：3
- Hazard Category Code： 10
- Safety Instruction： S16-S33
-
Hazardous Material Identification：
- HazardClass：3.2
- PackingGroup：III
- Storage Condition：Inert atmosphere,2-8°C(BD40731)
- Safety Term：3.2
- Packing Group：III
- Risk Phrases：R10
- Packing Group：III
- Hazard Level：3.2
5-methyl-1,2-oxazole Pricemore >>
| Related Categories | No. | Product Name | Cas No. | Purity | Specification | Price | update time | Inquiry |
|---|---|---|---|---|---|---|---|---|
| SHANG HAI SHAO YUAN SHI JI Co., Ltd. | SY038700-1g |
5-Methylisoxazole |
5765-44-6 | ≥95% | 1g |
￥44.00 | 2025-04-14 | |
| SHANG HAI SHAO YUAN SHI JI Co., Ltd. | SY038700-5g |
5-Methylisoxazole |
5765-44-6 | ≥95% | 5g |
￥215.00 | 2025-04-14 | |
| SHANG HAI SHAO YUAN SHI JI Co., Ltd. | SY038700-10g |
5-Methylisoxazole |
5765-44-6 | ≥95% | 10g |
￥428.00 | 2025-04-14 | |
| SHANG HAI SHAO YUAN SHI JI Co., Ltd. | SY038700-25g |
5-Methylisoxazole |
5765-44-6 | ≥95% | 25g |
￥1068.00 | 2025-04-14 | |
| Chemenu | CM119965-1000g |
5-Methylisoxazole |
5765-44-6 | 95+% | 1000g |
$8640 | 2021-08-06 | |
| Fluorochem | 068628-1g |
5-Methylisoxazole |
5765-44-6 | 97% | 1g |
￡10.00 | 2022-03-01 | |
| Fluorochem | 068628-5ml |
5-Methylisoxazole |
5765-44-6 | 97% | 5ml |
￡25.00 | 2022-03-01 | |
| Fluorochem | 068628-25ml |
5-Methylisoxazole |
5765-44-6 | 97% | 25ml |
￡94.00 | 2022-03-01 | |
| TI XI AI ( SHANG HAI ) HUA CHENG GONG YE FA ZHAN Co., Ltd. | M0813-25ML |
5-Methylisoxazole |
5765-44-6 | >95.0%(GC) | 25ml |
￥490.00 | 2024-04-15 | |
| TRC | M315200-5mg |
5-methyl-Isoxazole |
5765-44-6 | 5mg |
$64.00 | 2023-05-17 |
5-methyl-1,2-oxazole Suppliers
Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier
(CAS:5765-44-6)5-甲基異惡唑
Order Number:LE5868977
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:45
Price ($):discuss personally
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5-methyl-1,2-oxazole Related Literature
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Jitendra Nath,Jubaraj B. Baruah CrystEngComm 2022 24 3394
-
Wen Yang,Yongqi Yao,Xin Yang,Yingying Deng,Qifu Lin,Dingqiao Yang RSC Adv. 2019 9 8894
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Shuchen Pei,Shihao Xia,Fating Yang,Junlin Chen,Mengdie Wang,Wanlin Sun,Ziqiang Li,Kangyao Yuan,Jun Chen RSC Adv. 2020 10 4446
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Thomas Uhlemann,Sebastian Seidel,Christian W. Müller Phys. Chem. Chem. Phys. 2018 20 6891
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5. Isoxazole amino-acids as glutamic acid agonists. Synthesis of some analogues and homologues of ibotenic acidJan J. Hansen,Povi Krogsgaard-Larsen J. Chem. Soc. Perkin Trans. 1 1980 1826
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Recommended suppliers
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:5765-44-6)5-甲基異惡唑
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry