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8.01111

Sigma-Aldrich

4-Aminopyridine

for synthesis

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Synonym(s):
4-Aminopyridine, 4-Pyridylamine
Linear Formula:
4-(NH2)C5H4N
CAS Number:
Molecular Weight:
94.11
MDL number:
EC Index Number:
207-987-9

Quality Level

assay

≥98.0% (GC)

form

crystals

autoignition temp.

640 °C

potency

21 mg/kg LD50, oral (Rat)

bp

274 °C/1013 hPa

mp

157-160 °C

transition temp

flash point 156 °C

solubility

soluble 83 g/L

density

1.26 g/cm3 at 25 °C

storage temp.

2-30°C

InChI

1S/C5H6N2/c6-5-1-3-7-4-2-5/h1-4H,(H2,6,7)

InChI key

NUKYPUAOHBNCPY-UHFFFAOYSA-N

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This Item
A784032758751162454
vibrant-m

8.01111

4-Aminopyridine

vibrant-m

A78403

4-Aminopyridine

vibrant-m

275875

4-Aminopyridine

vibrant-m

1162454

Dalfampridine

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

solubility

soluble 83 g/L

solubility

H2O: 50 mg/mL, clear, colorless

solubility

DMF: soluble(lit.), DMSO: soluble(lit.), THF: soluble(lit.), acetone: soluble(lit.), acetonitrile: soluble(lit.), ethanol: soluble(lit.), isopropanol: soluble(lit.), methanol: soluble(lit.), water: soluble(lit.)

solubility

-

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

density

1.26 g/cm3 at 25 °C

density

-

density

-

density

-

form

crystals

form

crystals

form

solid

form

-

Application

4-Aminopyridine for synthesis. CAS 504-24-5, chemical formula 4-(NH₂)C₅H₄N.

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 157 °C
Melting range (upper value): ≤ 160 °C
Identity (IR): passes test

signalword

Danger

Hazard Classifications

Acute Tox. 2 Oral - Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

312.8 °F

flash_point_c

156 °C


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