4-Amino-2-chloro-5-nitropyrimidine - ≥95% , CAS No.1920-66-7

CAS: 1920-66-7 Cat. No.: A123046 Molecular Weight: 174.55 EC Number: 217-648-7
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
2-Chloro-4-amino-5-nitropyrimidine | 2-Chloro-5-nitro-pyrimidin-4-amine | 2-Chloro-5-nitropyrimidin-4-amine | 4-Pyrimidinamine, 2-chloro-5-nitro- | AB03545 | NSC-40838 | 1-methylsulfonylethene | W-206416 | NCGC00339205-01 | SY019860 | 4-Amino-2-chloro-5-n
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
A123046-250mg
4

$9.90

$14.90
Save $5.00 (33.56%)
1g
A123046-1g
3

$28.90

$43.90
Save $15.00 (34.17%)
5g
A123046-5g
1

$72.90

$109.90
Save $37.00 (33.67%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

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

🌡

Storage & shipping

Room temperature Ships Normal 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.

Overview

It is an important raw material and intermediate used in organic synthesis agrochemical, pharmaceutical and dyestuff field.

Specifications

Synonyms
2-Chloro-4-amino-5-nitropyrimidine | 2-Chloro-5-nitro-pyrimidin-4-amine | 2-Chloro-5-nitropyrimidin-4-amine | 4-Pyrimidinamine, 2-chloro-5-nitro- | AB03545 | NSC-40838 | 1-methylsulfonylethene | W-206416 | NCGC00339205-01 | SY019860 | 4-Amino-2-chloro-5-n
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid488184971
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488184971
Canonical SmilesC1=C(C(=NC(=N1)Cl)N)[N+](=O)[O-]
IUPAC Name2-chloro-5-nitropyrimidin-4-amine
InChIKeyRZGOEIWDMVQJBQ-UHFFFAOYSA-N
INCHI1S/C4H3ClN4O2/c5-4-7-1-2(9(10)11)3(6)8-4/h1H,(H2,6,7,8)
Isomeric SMILES C1=C(C(=NC(=N1)Cl)N)[N+](=O)[O-]
WGK Germany 3
Molecular Weight 174.55
Reaxy-Rn 156953
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=156953&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
SuperclassOrganic 1,3-dipolar compounds
ClassAllyl-type 1,3-dipolar organic compounds
SubclassOrganic nitro compounds
Intermediate Tree Nodes C-nitro compounds
Direct ParentNitroaromatic compounds
Alternative Parents Aminopyrimidines and derivatives  2-halopyrimidines  Imidolactams  Aryl chlorides  Heteroaromatic compounds  Propargyl-type 1,3-dipolar organic compounds  Organic oxoazanium compounds  Azacyclic compounds  Primary amines  Organopnictogen compounds  Organochlorides  Organic zwitterions  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Nitroaromatic compound - Aminopyrimidine - 2-halopyrimidine - Halopyrimidine - Aryl chloride - Aryl halide - Imidolactam - Pyrimidine - Heteroaromatic compound - Organic oxoazanium - Azacycle - Organoheterocyclic compound - Propargyl-type 1,3-dipolar organic compound - Amine - Organic zwitterion - Primary amine - Organonitrogen compound - Organochloride - Hydrocarbon derivative - Organohalogen compound - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as nitroaromatic compounds. These are c-nitro compounds where the nitro group is C-substituted with an aromatic group.
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.

5 results found

Lot NumberCertificate TypeDateItem
A2207667Certificate of AnalysisOct 13, 2025 A123046
A2207698Certificate of AnalysisOct 13, 2025 A123046
H1704019Certificate of AnalysisMar 04, 2025 A123046
C2302427Certificate of AnalysisMar 15, 2023 A123046
C2302425Certificate of AnalysisDec 14, 2021 A123046
Chemical and Physical Properties
SolubilitySlightly soluble in water.
Melt Point(°C)221-226°C
Molecular Weight174.540 g/mol
XLogP31.200
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass173.994 Da
Monoisotopic Mass173.994 Da
Topological Polar Surface Area97.600 Ų
Heavy Atom Count11
Formal Charge0
Complexity161.000
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
Reviews

Customer Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.