4-Amino-1,2,5-oxadiazole-3-carboxylic acid - ≥98% , CAS No.78350-50-2

CAS: 78350-50-2 Cat. No.: A195055 Molecular Weight: 129.07 EC Number: 636-071-5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
SCHEMBL1001730 | Furazancarboxylic acid, 4-amino- | 3-Aminofurazan-4-carboxylic acid | Oprea1_125002 | EN300-55717 | J-514295 | WHO 9736 | STK394273 | 1,2,5-oxadiazole, OXD2 | 1,2,5-Oxadiazole-3-carboxylicacid, 4-amino- | FT-0733738 | AM20100780 | 4-amino
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A195055-250mg
3
$9.90
1g
A195055-1g
3
$10.90
5g
A195055-5g
2

$11.90

$17.90
Save $6.00 (33.52%)
25g
A195055-25g
1

$53.90

$80.90
Save $27.00 (33.37%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

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

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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
SCHEMBL1001730 | Furazancarboxylic acid, 4-amino- | 3-Aminofurazan-4-carboxylic acid | Oprea1_125002 | EN300-55717 | J-514295 | WHO 9736 | STK394273 | 1, 2, 5-oxadiazole, OXD2 | 1, 2, 5-Oxadiazole-3-carboxylicacid, 4-amino- | FT-0733738 | AM20100780 | 4-amino
Specifications & Purity
≥98%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504759210
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504759210
Canonical SmilesC1(=NON=C1N)C(=O)O
IUPAC Name4-amino-1,2,5-oxadiazole-3-carboxylic acid
InChIKeyYOXIXLVJYMCCIB-UHFFFAOYSA-N
INCHI1S/C3H3N3O3/c4-2-1(3(7)8)5-9-6-2/h(H2,4,6)(H,7,8)
Isomeric SMILES C1(=NON=C1N)C(=O)O
Molecular Weight 129.07
Reaxy-Rn 124719
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=124719&ln=

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
ClassImidolactams
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentImidolactams
Alternative Parents Vinylogous amides  Heteroaromatic compounds  Furazans  Amino acids  Monocarboxylic acids and derivatives  Carboxylic acids  Azacyclic compounds  Primary amines  Organopnictogen compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Imidolactam - Azole - Furazan - Heteroaromatic compound - Vinylogous amide - Oxadiazole - Amino acid or derivatives - Amino acid - Carboxylic acid derivative - Carboxylic acid - Azacycle - Monocarboxylic acid or derivatives - Amine - Organooxygen compound - Organonitrogen compound - Primary amine - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as imidolactams. These are cyclic organooxygen compounds containing the structure RC(=N)N where the central carbon atom and one of the linked nitrogen atoms are part of the same ring( R here is an organyl group). They can also be viewed as analogs of lactams where the oxygen atom is replaced by a nitrogen atom.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
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
B2010042Certificate of AnalysisSep 16, 2025 A195055
H2113089Certificate of AnalysisMay 07, 2024 A195055
Chemical and Physical Properties
Molecular Weight129.070 g/mol
XLogP3-0.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count1
Exact Mass129.017 Da
Monoisotopic Mass129.017 Da
Topological Polar Surface Area102.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity127.000
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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