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28141-13-1

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Basic Information
CAS No.: 28141-13-1
Name: 1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
Article Data: 4
Molecular Structure:
Molecular Structure of 28141-13-1 (1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile)
Formula: C9H10N2O2
Molecular Weight: 178.191
Synonyms: 1-Ethyl-2-hydroxy-4-methyl-5-cyano-6-pyridinone;1-Ethyl-2-hydroxy-4-methyl-5-cyano-6-pyridone;1-Ethyl-3-cyano-4-methyl-6-hydroxy-2-pyridone;1-Ethyl-3-cyano-6-hydroxy-4-methyl-2-pyridone;3-Cyano-1-ethyl-6-hydroxy-4-methylpyrid-2-one;3-Cyano-N-ethyl-6-hydroxy-4-methyl-2-pyridone;3-Cyano-N-ethyl-6-hydroxy-4-methylpyridone;
EINECS: 248-865-5
Density: 1.27 g/cm3
Melting Point: 244-247 °C(lit.)
Boiling Point: 316.82 °C at 760 mmHg
Flash Point: 145.408 °C
Appearance: White powder in rice form
Hazard Symbols: HarmfulXn
Risk Codes: 20/21/22-36/37/38
Safety: 26-36
PSA: 66.02000
LogP: 0.75388
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Synthetic route
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28141-13-1

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Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;94%
...Expand
75-04-7

ethylamine

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acetoacetic acid methyl ester

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ethyl 2-cyanoacetate

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Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;94%
...Expand
141-97-9

ethyl acetoacetate

75-04-7

ethylamine

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ethyl 2-cyanoacetate

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Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;93%
...Expand
75-04-7

ethylamine

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acetoacetic acid methyl ester

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methyl 2-cyanoacetate

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3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

Conditions
ConditionsYield
With silica gel for 0.0333333h; microwave irradiation;93%
In water
...Expand
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4,4'-diamino-2,2'-biphenyldisulfonic acid

28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

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Conditions
ConditionsYield
Stage #1: 4,4'-diamino-2,2'-biphenyldisulfonic acid With sodium hydroxide; sodium nitrite In water for 0.5h; pH=7 - 8; Cooling with ice;
Stage #2: With hydrogenchloride In water for 2h;
Stage #3: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone Further stages;		100%
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4-(Aminophenyl)-sulfonylessigsaeure

28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

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Conditions
ConditionsYield
Stage #1: 4-(Aminophenyl)-sulfonylessigsaeure With hydrogenchloride; sodium nitrite In water at -5 - 0℃;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at -5 - 10℃; pH=5.5 - 6;		97.67%
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

121-57-3

4-aminobenzene sulfonic acid

C15H14N4O5S

Conditions
ConditionsYield
Stage #1: 4-aminobenzene sulfonic acid With sodium hydroxide In water pH=7 - 8; Cooling with ice;
Stage #2: With hydrogenchloride; sodium nitrite In water for 2.5h; Cooling with ice;
Stage #3: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In water for 2h; pH=8 - 9; Cooling with ice;		92%
Stage #1: 4-aminobenzene sulfonic acid With hydrogenchloride; sodium nitrite In water at 5 - 10℃; for 3h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at 10℃; pH=5 - 8;		78%
Stage #1: 4-aminobenzene sulfonic acid With hydrogenchloride; sodium nitrite In water at 5 - 10℃;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With sodium hydroxide In water at 10℃; pH=5 - 8;		60.4 g
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2-Amino-4,5,6,7-tetrahydrobenzothiazole

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3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

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Conditions
ConditionsYield
Stage #1: 2-Amino-4,5,6,7-tetrahydrobenzothiazole With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 2h;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone With acetic acid In water at 0 - 5℃; for 2h;		88%

C12H11BrN3O2(1+)*HO4S(1-)

28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

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Conditions
ConditionsYield
With sodium hydroxide; 2,4,7,9-tetramethyl-5-decyne-4,7-diol In water at 10 - 15℃; for 1.5h; pH=2 - 12;86%
28141-13-1

3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone

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anthranilic acid

C16H14N4O4

Conditions
ConditionsYield
Stage #1: anthranilic acid With sulfuric acid; acetic acid; sodium nitrite In water for 0.5h; Cooling with ice;
Stage #2: 3-cyano-1-ethyl-6-hydroxy-4-methyl-2-pyridone In ethanol; water at 0 - 5℃; for 3h;		86%
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    Business Type:Lab/Research institutions

    Tel:+86 15889746615

    Address:BuildingA7, KingloryTongxin International Industry Park, Wanglei Avenue, Hi-tec District

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  • 2,3,4,5-tetrabromoaniline

  • Casno:

    28141-13-1

    2,3,4,5-tetrabromoaniline

    Min.Order: 10 Milligram

    FOB Price:  USD $ 0.0-0.0

    1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G

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  • 1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

  • Casno:

    28141-13-1

    1-Ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0

    Watson International Ltd' has a very strong R&D and technical capacity supported by FCAD's platform. The subsidiaries under FCAD Group have accumulated much know-how of different fine chemical branches. For example, Apnoke Scientific L

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  • 1-ETHYL-6-HYDROXY-4-METHYL-2-OXO-1,2-DIHYDROPYRIDINE-3-CARBONITRILE

  • Casno:

    28141-13-1

    1-ETHYL-6-HYDROXY-4-METHYL-2-OXO-1,2-DIHYDROPYRIDINE-3-CARBONITRILE

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0

    Betterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in

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Chemistry

IUPAC Name: 1-ethyl-2-hydroxy-4-methyl-6-oxopyridine-3-carbonitrile 
Empirical Formula: C9H10N2O2
Molecular Weight: 178.1879g/mol
EINECS: 248-865-5 
Structure of 3-Pyridinecarbonitrile,1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo- (CAS NO.28141-13-1):

Index of Refraction: 1.574
Molar Refractivity: 46.28 cm3
Molar Volume: 140.1 cm3
Polarizability: 18.34×10-24cm3
Surface Tension: 55.6 dyne/cm
Density: 1.27 g/cm3
Flash Point: 138.2 °C
Enthalpy of Vaporization: 63.25 kJ/mol 
Melting Point: 244-247 °C(lit.)
Boiling Point: 305 °C at 760 mmHg
Vapour Pressure: 7.99E-05 mmHg at 25°C 
Product Categories: Intermediates of Dyes and Pigments;Pyridines;E-F;Stains and Dyes;Stains&Dyes, A to 
Canonical SMILES: CCN1C(=O)C=C(C(=C1O)C#N)C
InChI: InChI=1S/C9H10N2O2/c1-3-11-8(12)4-6(2)7(5-10)9(11)13/h4,13H,3H2,1-2H3
InChIKey: YSNMMQRIPFUHAO-UHFFFAOYSA-N

Safety Profile

Hazard Codes: HarmfulXn
Risk Statements: 20/21/22-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3

Specification

  3-Pyridinecarbonitrile,1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo- , its cas register number is 28141-13-1. It also can be called 1-Ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile . 3-Pyridinecarbonitrile,1-ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo- (CAS NO.28141-13-1) is harmful by inhalation, in contact with skin and if swallowed. It's also irritating to eyes, respiratory system and skin.