3,6-Dichloropyridazin-4-ol - ≥95% , CAS No.2779-81-9

CAS: 2779-81-9 Cat. No.: D588535 Molecular Weight: 164.97 EC Number: 220-477-0
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
3,6-dichloro-1H-pyridazin-4-one | FT-0748334 | SY045542 | EN300-122918 | J-511396 | 4-hydroxy-3,6-dichloropyridazine | AS-37828 | EINECS 220-477-0 | SCHEMBL10321593 | 3,6-Dichloropyridazin-4(1H)-one | 4(1h)-pyridazinone,3,6-dichloro- | 3,6-Dichloropyridaz
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
D588535-250mg
3

$9.90

$14.90
Save $5.00 (33.56%)
1g
D588535-1g
3

$15.90

$23.90
Save $8.00 (33.47%)
5g
D588535-5g
2

$67.90

$101.90
Save $34.00 (33.37%)
25g
D588535-25g
2

$336.90

$505.90
Save $169.00 (33.41%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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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
3, 6-dichloro-1H-pyridazin-4-one | FT-0748334 | SY045542 | EN300-122918 | J-511396 | 4-hydroxy-3, 6-dichloropyridazine | AS-37828 | EINECS 220-477-0 | SCHEMBL10321593 | 3, 6-Dichloropyridazin-4(1H)-one | 4(1h)-pyridazinone, 3, 6-dichloro- | 3, 6-Dichloropyridaz
Specifications & Purity
≥95%
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
≥95%
Names and Identifiers
Canonical SmilesC1=C(NN=C(C1=O)Cl)Cl
IUPAC Name3,6-dichloro-1H-pyridazin-4-one
InChIKeyUZRZWRDICWBWBA-UHFFFAOYSA-N
INCHI1S/C4H2Cl2N2O/c5-3-1-2(9)4(6)8-7-3/h1H,(H,7,9)
Isomeric SMILES C1=C(NN=C(C1=O)Cl)Cl
Molecular Weight 164.97
Reaxy-Rn 119508
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=119508&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
ClassDiazines
SubclassPyridazines and derivatives
Intermediate Tree Nodes Not available
Direct ParentPyridazines and derivatives
Alternative Parents Aryl chlorides  Vinylogous halides  Vinylogous amides  Heteroaromatic compounds  Cyclic ketones  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organochlorides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Aryl chloride - Aryl halide - Pyridazine - Vinylogous halide - Heteroaromatic compound - Vinylogous amide - Cyclic ketone - Azacycle - Organic nitrogen compound - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organooxygen compound - Organonitrogen compound - Organochloride - Organohalogen compound - Organic oxygen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyridazines and derivatives. These are compounds containing a pyridazine ring, which is a six-member aromatic ring containing two nitrogen atoms at positions 1 and 2, and four carbon atoms.
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.

4 results found

Lot NumberCertificate TypeDateItem
I2312445Certificate of AnalysisJun 15, 2026 D588535
I2312446Certificate of AnalysisJun 15, 2026 D588535
I2312447Certificate of AnalysisJun 15, 2026 D588535
I2312448Certificate of AnalysisJun 15, 2026 D588535
Chemical and Physical Properties
Molecular Weight164.970 g/mol
XLogP31.800
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass163.954 Da
Monoisotopic Mass163.954 Da
Topological Polar Surface Area41.500 Ų
Heavy Atom Count9
Formal Charge0
Complexity209.000
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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