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4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER

CAS No.
6975-44-6
Chemical Name:
4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER
Synonyms
Ethyl 4,6-dihydroxynicotinate;ethyl 2,4-dihydroxypyridine-5-carboxylate;NSC 22486;BUTTPARK 153\57-32;SPECS AC-907/34126052;2,4-Dihydroxy-5-(ethoxycar;4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER;2,4-Dihydroxy-5-(ethoxycarbonyl)pyridine;Ethyl 4,6-Dihydroxypyridine-3-carboxylate;4,6-Dihydroxynicotinic acid ethyl ester ,97%
CBNumber:
CB0680790
Molecular Formula:
C8H9NO4
Molecular Weight:
183.16
MDL Number:
MFCD00834976
MOL File:
6975-44-6.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:52
Product description Number Pack Size Price
Ethyl 4,6-Dihydroxynicotinate >97.0%(T) E1110 1g $57
Ethyl 4,6-Dihydroxynicotinate >97.0%(T) E1110 5g $174
ETHYL 4,6-DIHYDROXYNICOTINATE 97% 52358 5G $30
ETHYL 4,6-DIHYDROXYNICOTINATE 97% 52358 25G $129
Ethyl 4,6-dihydroxynicotinate 98% E49350 1g $20
More product size

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER Properties

Melting point 214-217°
Boiling point 339.4±42.0 °C(Predicted)
Density 1.380
storage temp. Inert atmosphere,Room Temperature
form powder to crystal
pka 4.50±1.00(Predicted)
color White to Orange to Green
InChI InChI=1S/C8H9NO4/c1-2-13-8(12)5-4-9-7(11)3-6(5)10/h3-4H,2H2,1H3,(H2,9,10,11)
InChIKey QDHHLXABEXNRJX-UHFFFAOYSA-N
SMILES C1NC(=O)C=C(O)C=1C(OCC)=O
CAS DataBase Reference 6975-44-6

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Risk Statements  36/37/38
Safety Statements  26-36/37/39
HazardClass  IRRITANT
HS Code  29339900
NFPA 704
0
2 0

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER price More Price(60)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical E1110 Ethyl 4,6-Dihydroxynicotinate >97.0%(T) 6975-44-6 1g $57 2025-07-31 Buy
TCI Chemical E1110 Ethyl 4,6-Dihydroxynicotinate >97.0%(T) 6975-44-6 5g $174 2025-07-31 Buy
AstaTech 52358 ETHYL 4,6-DIHYDROXYNICOTINATE 97% 6975-44-6 5G $30 2026-04-30 Buy
AstaTech 52358 ETHYL 4,6-DIHYDROXYNICOTINATE 97% 6975-44-6 25G $129 2026-04-30 Buy
Synthonix E49350 Ethyl 4,6-dihydroxynicotinate 98% 6975-44-6 1g $20 2026-05-06 Buy
Product number Packaging Price Buy
E1110 1g $57 Buy
E1110 5g $174 Buy
52358 5G $30 Buy
52358 25G $129 Buy
E49350 1g $20 Buy

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER Chemical Properties,Uses,Production

Chemical Properties

White solid

Uses

Ethyl 4,6-dihydroxynicotinate has been used as a reactant is the synthesis of pyridazinopyrimidinone and pyridopyrimidinone derivatives as PDE5 inhibitors and for the synthesis of pyridone diaryl ether non-nucleoside inhibitors of HIV-1 reverse transcriptase.

Synthesis

Acetic anhydride

108-24-7

Diethyl 1,3-acetonedicarboxylate

105-50-0

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER

6975-44-6

The general procedure for the synthesis of ethyl 4,6-dihydroxynicotinate from ethanoic anhydride and diethyl 1,3-acetone dicarboxylate was as follows: diethyl 3-oxoglutarate (101 g, 0.5 mol), triethyl orthoformate (81.4 g, 0.55 mol), and acetic anhydride (102 g, 1 mol) were mixed and the reaction was maintained at a temperature of 120 °C for 2 hours. After completion of the reaction, the mixture was cooled to room temperature and dissolved in dichloromethane (1 L). Subsequently, the solution was cooled to 0 °C, 30% ammonia (80 mL) was slowly added, and then the reaction mixture was gradually warmed to room temperature and left overnight. The reaction mixture was extracted twice with water and the aqueous phase was adjusted to pH 5 with concentrated hydrochloric acid. after acidification, the precipitate was collected by filtration to afford ethyl 4,6-dihydroxynicotinate (60.0 g, 60% yield). The product was characterized by 1H NMR (400 MHz, DMSO-d6): δ 7.99 (s, 1H), 5.58 (s, 1H), 4.23 (q, J = 6.8, 14.0 Hz, 2H), 1.25 (t, J = 7.2 Hz, 3H); MS (ESI) m/z: 184.1 [M + H]+.

References

[1] Patent: US8461179, 2013, B1. Location in patent: Page/Page column 66

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View Lastest Price from 4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER  pictures 2025-11-18 4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER
6975-44-6
US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER pictures 2025-04-04 4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER
6975-44-6
US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER pictures 2019-07-06 4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER
6975-44-6
US $1.00 / kg 1kg 98% 200kg Career Henan Chemical Co

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER Spectrum

4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER 2,4-Dihydroxy-5-(ethoxycar 4,6-DIHYDROXYPYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER BUTTPARK 153\57-32 SPECS AC-907/34126052 Ethyl 4,6-dihydroxynicotinate ethyl 6-hydroxy-4-oxo-1H-pyridine-3-carboxylate 6-hydroxy-4-keto-1H-pyridine-3-carboxylic acid ethyl ester 6-hydroxy-4-oxo-1H-pyridine-3-carboxylic acid ethyl ester 4,6-Dihydroxynicotinic acid ethyl ester ,97% NSC 22486 2,4-Dihydroxy-5-(ethoxycarbonyl)pyridine Nicotinicacid, 4,6-dihydroxy-, ethyl ester (7CI) Ethyl 4,6-dihydroxypyridine-3-carboxylate, 4,6-Dihydroxynicotinic acid ethyl ester 3-Pyridinecarboxylic acid, 1,6-dihydro-4-hydroxy-6-oxo-, ethyl ester ethyl 2,4-dihydroxypyridine-5-carboxylate Ethyl 4,6-dihydroxypyridine-3-carboxylate, 2,4-Dihydroxy-5-(ethoxycarbonyl)pyridine Ethyl 4,6-Dihydroxypyridine-3-carboxylate 4, 6-DIHYDROXYNICOTINIC ACID ETHYL ESTER ISO 9001:2015 REACH Ethyl 1,6-dihydro-4-hydroxy-6-oxo-3-pyridinecarboxylate 6975-44-6 Pyridine