ChemicalBook > CAS DataBase List > 3-METHYL-4-PYRIDINECARBOXYLIC ACID

3-METHYL-4-PYRIDINECARBOXYLIC ACID

Product Name: 3-METHYL-4-PYRIDINECARBOXYLIC ACID
CAS No.: 4021-12-9
Chemical Name: 3-METHYL-4-PYRIDINECARBOXYLIC ACID
Synonyms: ASINEX-REAG BAS 07668195;3-Methyl-isonicotinicaci;5-Methylisonicotinic Acid;3-METHYL-ISONICOTINIC ACID;3-methylpyridine-4-carboxylate;3-METHYL-4-PYRIDINYLCARBOXIC ACID;3-METHYLPYRIDINE-4-CARBOXYLIC ACID;3-METHYL-4-PYRIDINECARBOXYLIC ACID;4-Pyridinecarboxylic acid, 3-methyl-;3-Methyl-4-pyridinecarboxylic acid ,97%
CBNumber: CB5220296
Molecular Formula: C7H7NO2
Formula Weight: 137.14
MOL File: 4021-12-9.mol

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3-METHYL-4-PYRIDINECARBOXYLIC ACID Property

Melting point:: 235℃
Boiling point:: 389℃
Density: 1.230
Flash point:: 189℃
storage temp.: Inert atmosphere,Room Temperature
pka: 0.82±0.25(Predicted)
Appearance: White to light yellow Solid
InChI: InChI=1S/C7H7NO2/c1-5-4-8-3-2-6(5)7(9)10/h2-4H,1H3,(H,9,10)
InChIKey: OSMAGAVKVRGYGR-UHFFFAOYSA-N
SMILES: C1=NC=CC(C(O)=O)=C1C
CAS DataBase Reference: 4021-12-9(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36/37/39
HazardClass: IRRITANT
HS Code: 2933399990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC

Product number: M323315
Product name: 3-MethylIsonicotinicAcid
Packaging: 5g
Price: $1260
Updated: 2021/12/16

AK Scientific

Product number: B205
Product name: 3-Methyl-4-pyridinecarboxylicacid
Packaging: 100g
Price: $1667
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0023855
Product name: 3-METHYL-ISONICOTINIC ACID
Purity: 95.00%
Packaging: 25G
Price: $1008
Updated: 2021/12/16

Apolloscientific

Product number: OR912065
Product name: 3-Methyl-4-pyridinecarboxylicacid
Purity: 95%
Packaging: 1g
Price: $110
Updated: 2021/12/16

Matrix Scientific

Product number: 020640
Product name: 3-Methyl-isonicotinic acid
Packaging: 500mg
Price: $129
Updated: 2021/12/16

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3-METHYL-4-PYRIDINECARBOXYLIC ACID Chemical Properties,Usage,Production

Uses

An Isonicotinic Acid (I821760) derivative. Used in the preparation of 4,5-dihydro-1H-pyrazole derivatives as cholesterol 24 hydroxylase inhibitors for prevention and/or treatment of neurodegenerative disease.

Uses

3-Methyl-4-pyridinecarboxylic acid can be used in the preparation of 4,5-dihydro-1H-pyrazole derivatives as cholesterol 24 hydroxylase inhibitors for prevention and/or treatment of neurodegenerative disease.

Synthesis

583-58-4

4021-12-9

The general procedure for the synthesis of 3-methyl-4-pyridinecarboxylic acid from 3,4-dimethylpyridine was as follows: 3,4-dimethylpyridine (119.30 g, 0.28 mol) was dissolved in diphenyl ether (150 mL) and heated to 150-170 °C, followed by the slow addition of selenium dioxide (62 g, 0.56 mol). Selenium dioxide was added in batches over a period of 1 hour. The reaction mixture was heated to 180 °C and maintained at this temperature for 1 hour. Upon completion of the reaction, the mixture was filtered while hot and the collected precipitate was washed with boiling water (3 x 300 mL). The filtrates were combined and extracted with chloroform (3 x 300 mL). The aqueous phase was evaporated to dryness and the resulting crude product was recrystallized from ethanol (450 mL) to give pure 3-methyl-4-pyridinecarboxylic acid (18 g, 47% yield) with a melting point of 220-222°C (Literature value: J. Chem. Soc., Perkin Trans. 1, 1984, 1501-1505, melting point 232°C).1H NMR (300 MHz, DMSO-d6) δ 8.59 (s, 1H), 8.04 (s, 1H), 8.47 (d, J = 4.8 Hz, 1H), 7.69 (d, J = 4.8 Hz, 1H), 2.48 (s, 3H).

References

[1] Journal of Medicinal Chemistry, 2012, vol. 55, # 4, p. 1682 - 1697
[2] Patent: US2014/18360, 2014, A1. Location in patent: Paragraph 0152
[3] Journal of Medicinal Chemistry, 2012, vol. 55, # 22, p. 10118 - 10129
[4] Patent: US5952343, 1999, A
[5] Patent: US5461154, 1995, A

3-METHYL-4-PYRIDINECARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Diphenyl ether Ethyl acetate Selenium dioxide 3,4-Lutidine

Preparation Products

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View Lastest Price from 3-METHYL-4-PYRIDINECARBOXYLIC ACID manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: 3-Methylisonicotinic acid 4021-12-9
Price: US $3.90-5.90/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2025-06-13

Dideu Industries Group Limited

Product: 3-METHYL-4-PYRIDINECARBOXYLIC ACID 4021-12-9
Price: US $1.10/g
Min. Order: 1g
Purity: 99.00%
Supply Ability: 100 Tons Min
Release date: 2021-10-28

4021-12-9, 3-METHYL-4-PYRIDINECARBOXYLIC ACIDRelated Search:

ETHYL 2-CHLORO-3-CYANO-6-METHYLISONICOTINATE Pyrroloquinoline quinone ETHYL 6-(TERT-BUTYL)-3-CYANO-2-HYDROXYISONICOTINATE Ethyl 3-cyano-2-mercapto-6-methylisonicotinate DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97 4-Pyridoxic acid 3-METHYL-4-PYRIDINECARBOXYLIC ACID 1,2,3,4-TETRAHYDRO-9-ACRIDINECARBOXYLIC ACID DIHYDRATE PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE 3,4-Pyridinedicarboxylic acid 2-HYDROXY-4-METHYL-3-PYRIDINECARBOXYLIC ACID 2-Chloro-6-methylnicotinic acid 2-(4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-methyl-3-pyridinecarboxylic acid monoammonium salt 4-Methyl-3-pyridinecarboxylic acid Imazameth 4-chloro-2-(trifluoromethyl)pyrimidine-5-carboxylic acid 4-Hydroxy-2-methyl-5-pyridinecarboxylic acid,4-HYDROXY-6-METHYL-3-PYRIDINECARBOXYLIC ACID 2-Amino-5-methyl-3-pyridinecarboxylic acid

3-METHYL-4-PYRIDINECARBOXYLIC ACID

3-METHYL-4-PYRIDINYLCARBOXIC ACID

3-METHYL-ISONICOTINIC ACID

3-METHYLPYRIDINE-4-CARBOXYLIC ACID

ASINEX-REAG BAS 07668195

3-Methyl-4-pyridinecarboxylic acid ,97%

5-Methylisonicotinic Acid

4-Pyridinecarboxylic acid, 3-methyl-

3-Methyl-isonicotinicaci

3-METHYL-4-PYRIDINECARBOXYLIC ACID ISO 9001：2015 REACH

3-methylpyridine-4-carboxylate

4021-12-9

775024

12/9/4021

09-十二月-4021

775-02-4

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