2,4-Dihydroxypyridine

Modify Date: 2025-08-20 09:03:40

2,4-Dihydroxypyridine Structure
2,4-Dihydroxypyridine structure
 Common Name 2,4-Dihydroxypyridine
CAS Number 626-03-9 Molecular Weight 111.099
Density 1.4±0.1 g/cm3 Boiling Point 509.8±30.0 °C at 760 mmHg
Molecular Formula C5H5NO2 Melting Point 272-276 °C(lit.)
MSDS Chinese USA Flash Point 262.1±24.6 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Names

Name 2,4-Dihydroxypyridine
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 509.8±30.0 °C at 760 mmHg
Melting Point 272-276 °C(lit.)
Molecular Formula C5H5NO2
Molecular Weight 111.099
Flash Point 262.1±24.6 °C
Exact Mass 111.032028
PSA 53.35000
LogP -2.65
Vapour Pressure 0.0±1.4 mmHg at 25°C
Index of Refraction 1.625

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UV1146800
CHEMICAL NAME :
2(1H)-Pyridone, 4-hydroxy-
CAS REGISTRY NUMBER :
626-03-9
LAST UPDATED :
199206
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C5-H5-N-O2
MOLECULAR WEIGHT :
111.11
WISWESSER LINE NOTATION :
T6NJ BQ DQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4895 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TOXIA6 Toxicon. (Pergamon Press Ltd., Headington Hill Hall, Oxford OX3 OBW, UK) V.1- 1962- Volume(issue)/page/year: 23,815,1985

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi:Irritant
Risk Phrases R36/37/38
Safety Phrases S26-S36-S37/39
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS UV1146800
HS Code 2933399090

 Customs

HS Code 2933399090
Summary 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles8

More Articles
Synthesis of diazaphenoxathiin nucleosides from 3-deazauridine and their chemical properties.

Nucleic Acids Symp. Ser. (12) , 13-6, (1983)

New method for a synthesis of diazaphenoxathiin skeleton from 3-deazauracil derivatives is reported. It became possible to convert 3-deazauridine to 3-deazacytidine via an excellent intermediate "diaz...

Structure-activity relationship of ligands of dihydrouracil dehydrogenase from mouse liver.

Biochem. Pharmacol. 38(9) , 1471-80, (1989)

One hundred and five nucleobase analogues were screened as inhibitors of dihydrouracil dehydrogenase (DHUDase, EC 1.3.1.2) from mouse liver. 5-Benzyloxybenzyluracil, 1-deazauracil (2,6-pyridinediol), ...

[Presynaptic effects of aminopyridines on the neuromuscular junction of vertebrates].

J. Pharmacol. 16 Suppl 2 , 109-44, (1985)

In this review the effects of aminopyridines and chemically related compounds are documented in an attempt to analyse the mechanism underlying their presynaptic actions at the vertebrate neuromuscular...

 Synonyms

2,4-Dihydoxypyridine
3-DEAZAURACIL
4-Hydroxy-2(1H)-pyridinone
4-Hydroxypyridin-2(1H)-on
EINECS 210-924-8
4,6-Pyridinediol
2,4-Dihydroxy pyridine
2,4-Pyridinediol
4-hydroxypyridin-2(1H)-one
2,4-dihydroxy-pyridine
2(1H)-Pyridinone, 4-hydroxy-
pyridine-2,4-diol
MFCD00006273
2,4-Pridinediol
4-Hydroxy-2(1H)-pyridinon
4-Hydroxy-2-pyridone
4-diol
Pyridin-2,4-diol
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Chemsrc provides 2,4-Dihydroxypyridine(CAS#:626-03-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 2,4-Dihydroxypyridine are included as well.>> amp version: 2,4-Dihydroxypyridine

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