4-Aminopyridine N-Oxide

Modify Date: 2025-08-25 18:47:12

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

 Names

Name 1-hydroxypyridin-4-imine
Synonym More Synonyms

 Chemical & Physical Properties

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

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

 Synonyms

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
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