3-Hydroxyisoxazole - ≥97% , CAS No.5777-20-8

CAS: 5777-20-8 Cat. No.: O635982 Molecular Weight: 85.06 EC Number: 831-540-2 PubChem CID: 9964065
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
PS-20255 | isoxazol-3(2h)-one | 3-HYDROXYISOXAZOLE | 3-hydroxy-isoxazole | 1,2-oxazol-3-one | 3-Isoxazolol | AKOS022719772 | SY197715 | W15437 | MFCD16996230 | 1,2-OXAZOL-3-OL | 3(2H)-Isoxazolone | F8881-2391 | CS-0047268
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
O635982-250mg
2

$79.90

$119.90
Save $40.00 (33.36%)
1g
O635982-1g
2

$273.90

$410.90
Save $137.00 (33.34%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
PS-20255 | isoxazol-3(2h)-one | 3-HYDROXYISOXAZOLE | 3-hydroxy-isoxazole | 1, 2-oxazol-3-one | 3-Isoxazolol | AKOS022719772 | SY197715 | W15437 | MFCD16996230 | 1, 2-OXAZOL-3-OL | 3(2H)-Isoxazolone | F8881-2391 | CS-0047268
Specifications & Purity
≥97%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesC1=CONC1=O
IUPAC Name1,2-oxazol-3-one
InChIKeyFUOSTELFLYZQCW-UHFFFAOYSA-N
INCHI1S/C3H3NO2/c5-3-1-2-6-4-3/h1-2H,(H,4,5)
Isomeric SMILES C1=CONC1=O
Alternate CAS 5777-20-8
PubChem CID 9964065
Molecular Weight 85.06

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassIsoxazoles
Intermediate Tree Nodes Not available
Direct ParentIsoxazoles
Alternative Parents Heteroaromatic compounds  Lactams  Oxacyclic compounds  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Heteroaromatic compound - Isoxazole - Lactam - Oxacycle - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as isoxazoles. These are heterocyclic organic compounds containing an isoxazole moiety, with a structure characterized by a five-member aromatic ring with one oxygen atom and one nitrogen atom at ring positions 1 and 2, respectively.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

2 results found

Lot NumberCertificate TypeDateItem
I2515553Certificate of AnalysisJul 14, 2025 O635982
I2515554Certificate of AnalysisJul 14, 2025 O635982
Chemical and Physical Properties
Molecular Weight85.060 g/mol
XLogP3-0.300
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass85.0164 Da
Monoisotopic Mass85.0164 Da
Topological Polar Surface Area38.300 Ų
Heavy Atom Count6
Formal Charge0
Complexity97.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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