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3-Hydroxypyridine

3-Hydroxypyridine structure

CAS No:
109-00-2
Formula:
C5H5NO
Chemical Name:
3-Hydroxypyridine
Synonyms:
3-Pyridinol;3-Hydroxypyridine;3-Pyridol;β-Hydroxypyridine;m-Hydroxypyridine;3-Pyridyl alcohol;NSC 18470;β-Pyridinone;3(?H)-Pyridinone;58064-43-0
Categories:
Pharmaceutical Intermediates > Heterocyclic Compound

Description

white to light yellow crystalChEBI: A monohydroxypyridine that is pyridine in which the hydrogen at position 3 has been replaced by a hydroxy group. It has been detected as a thermal degradation product from the smoke of the burning leaves of Salvia divinorum, a Mexican psychoacive plant.

3-pyridinol is a monohydroxypyridine that is pyridine in which the hydrogen at position 3 has been replaced by a hydroxy group. It has been detected as a thermal degradation product from the smoke of the burning leaves of Salvia divinorum, a Mexican psychoactive plant.

3-Hydroxypyridine Basic Attributes

Molecular Weight：

95.1

Exact Mass：

95.10

BRN：

105699

EC Number：

205-520-3

UNII：

4KBE4P5B6S

NSC Number：

18470

DSSTox ID：

DTXSID1051563

HScode：

29333999

Characteristics

PSA：

33.1

XLogP3：

0.5

Appearance：

Beige to brown Crystalline Powder

Density：

1.1418 (rough estimate)

Melting Point：

127.5 °C

Boiling Point：

280-281 °C(lit.)

Flash Point：

173°C

Refractive Index：

1.5939 (estimate)

Water Solubility：

33g/l

Storage Conditions：

Store at RT.

Vapor Pressure：

0.19mmHg at 25°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38-40

safety instructions：

26-36-37/39-22

RTECS Number：

UV1144050

Marks：

Xi,Xn

Hazard note：

Irritant

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 54 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH：

Naturally occurring or synthetic substances that inhibit or retard oxidation reactions. They counteract the damaging effects of oxidation in animal tissues. (See all compounds classified as Antioxidants.)

MeSH Entry Terms：

3-hydroxypyridine

3-Hydroxypyridine Use and Manufacturing

Methods of Manufacturing

It is derived from pyridine through sulfonation, alkali fusion and neutralization. Add fuming sulfuric acid into the dry reaction pot, add pyridine dropwise with stirring, and then add mercury sulfate. Heat to 230-240℃, keep for 13-14h. Cool to 20-25°C, add ethanol to it, continue cooling to below 5°C, and crystallize. Filter to get pyridine-3-sulfonic acid. The melting point is 345°C, and the yield is 62%. Add sodium hydroxide and pyridine-3-sulfonic acid into the reaction pot, melt at 160°C, and heat to 220-230°C for 4h. Cool to 100°C, add water to dissolve, adjust the pH to 4 with 30% hydrochloric acid, concentrate under reduced pressure, and filter to remove sodium chloride. The filtrate was adjusted to pH 8-9 with saturated sodium carbonate, cooled and filtered, and dried to obtain crude 3-hydroxypyridine with a yield of 64%. Recrystallized with toluene to obtain a refined product, with a melting point of 126-128°C, a content of 98%, and a refined yield of 80%.

Uses

Used as pharmaceutical intermediates. Used in organic synthesis, pharmaceutical industry and dye preparation. Organic synthesis and pharmaceutical intermediates. For organic synthesis, medicine and dye preparation.

Manufacturing Info：

3-Pyridinol: ACTIVE

Computed Properties

Molecular Weight:95.10
XLogP3:0.5
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:2
Exact Mass:95.037113783
Monoisotopic Mass:95.037113783
Topological Polar Surface Area:33.1
Heavy Atom Count:7
Complexity:56
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Content: 99%

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Pyridin-3-ol cas109-00-2

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Grade: Pharmaceutical grade

Content: 99%

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