4-Aminopyridine N-Oxide

Modify Date: 2026-08-04 08:19:02

4-Aminopyridine N-Oxide Structure
4-Aminopyridine N-Oxide structure
Common Name 4-Aminopyridine N-Oxide
CAS Number 3535-75-9 Molecular Weight 110.11400
Density 1.23g/cm3 Boiling Point 218ºC at 760mmHg
Molecular Formula C5H6N2O Melting Point N/A
MSDS N/A Flash Point 85.7ºC

Summary: 4-Aminopyridine N-Oxide (1-hydroxypyridin-4-imine, CAS号:3535-75-9), with molecular formula C5H6N2O and molecular weight 110.11400, should be stored in a well-ventilated, cool, and dry warehouse. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 1-hydroxypyridin-4-imine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.23g/cm3
Boiling Point 218ºC at 760mmHg
Molecular Formula C5H6N2O
Molecular Weight 110.11400
Flash Point 85.7ºC
Exact Mass 110.04800
PSA 51.48000
LogP 1.27850
Index of Refraction 1.583
InChIKey SJQWWHFNDOUAGY-UHFFFAOYSA-N
SMILES N=c1ccn(O)cc1

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
US2100000
CHEMICAL NAME :
Pyridine, 4-amino-, 1-oxide
CAS REGISTRY NUMBER :
3535-75-9
BEILSTEIN REFERENCE NO. :
0107584
LAST UPDATED :
199712
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C5-H6-N2-O
MOLECULAR WEIGHT :
110.13
WISWESSER LINE NOTATION :
T6NJ AO DZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
75 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 21,315,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - wild bird species
DOSE/DURATION :
85 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 21,315,1972

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

4-aminopyridine-1-oxide
1-oxy-pyridin-4-ylamine
Phillips 1863
pyridin-4-amine 1-oxide
Pyridine,N-oxide
4-Pyrimidinamine 1-oxide
1-oxy-[4]pyridylamine
4-Pyridinamine 1-Oxide
4-Aminopyridine N-Oxide
1-Oxy-[4]pyridylamin

 4-Aminopyridine N-Oxide | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the downstream products of 1-hydroxypyridin-4-imine?
A: Related downstream products(CAS) of 1-hydroxypyridin-4-imine: 504-24-5;1131-61-9;13520-96-2;83237-34-7.
Q: What is the InChIKey of 1-hydroxypyridin-4-imine?
A: InChIKey of 1-hydroxypyridin-4-imine is SJQWWHFNDOUAGY-UHFFFAOYSA-N.
Q: What is the SMILES notation of 1-hydroxypyridin-4-imine?
A: SMILES notation of 1-hydroxypyridin-4-imine is N=c1ccn(O)cc1.
Q: What is the LogP of 1-hydroxypyridin-4-imine?
A: LogP of 1-hydroxypyridin-4-imine is 1.27850.
Q: What is the polar surface area (PSA) of 1-hydroxypyridin-4-imine?
A: Polar surface area (PSA) of 1-hydroxypyridin-4-imine is 51.48000.
Q: What is the molecular weight of 1-hydroxypyridin-4-imine?
A: Molecular weight of 1-hydroxypyridin-4-imine is 110.11400.
Q: What is the boiling point of 1-hydroxypyridin-4-imine?
A: Boiling point of 1-hydroxypyridin-4-imine is 218ºC at 760mmHg.
Q: What English synonyms does 1-hydroxypyridin-4-imine have?
A: English synonyms of 1-hydroxypyridin-4-imine: 4-aminopyridine-1-oxide, 1-oxy-pyridin-4-ylamine, Phillips 1863, pyridin-4-amine 1-oxide, Pyridine,N-oxide, 4-Pyrimidinamine 1-oxide, 1-oxy-[4]pyridylamine, 4-Pyridinamine 1-Oxide, 4-Aminopyridine N-Oxide, 1-Oxy-[4]pyridylamin.
Q: What is the molecular formula of 1-hydroxypyridin-4-imine?
A: Molecular formula of 1-hydroxypyridin-4-imine is C5H6N2O.
Q: What is the CAS number of 1-hydroxypyridin-4-imine?
A: CAS number of 1-hydroxypyridin-4-imine is 3535-75-9.

 4-Aminopyridine N-Oxidefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Dayang Chem (Hangzhou) Co., Ltd.
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