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| CAS No.: | 3326-71-4 |
|---|---|
| Name: | Furan-2-carbohydrazide |
| Article Data: | 66 |
| Molecular Structure: | |
|
|
|
| Formula: | C5H6N2O2 |
| Molecular Weight: | 126.115 |
| Synonyms: | 2-Furoicacid, hydrazide (6CI,7CI,8CI);2-(Hydrazinocarbonyl)furan;2-Furancarbohydrazide;2-Furancarbonyl hydrazide;2-Furoic hydrazide;2-Furoylhydrazine;2-Furylcarbonylhydrazide;2-Furylcarboxylic acid hydrazide;Furan-2-carboxylic hydrazide;NSC11957;NSC 35574; |
| EINECS: | 222-046-2 |
| Density: | 1.264 g/cm3 |
| Melting Point: | 77-79 °C(lit.) |
| Boiling Point: | 279°C(lit.) |
| Appearance: | Beige crystals |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 36/37/38-20/21/22 |
| Safety: | 22-24/25-36/37/39-26 |
| PSA: | 68.26000 |
| LogP: | 0.97430 |
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| Conditions | Yield |
|---|---|
| With hydrazine hydrate In ethanol for 8h; Reflux; | 83% |
| With hydrazine hydrate In ethanol for 5h; Heating; | 75% |
| With hydrazine hydrate In ethanol for 5h; Heating; | 75% |
| Conditions | Yield |
|---|---|
| With hydrazine hydrate In ethanol Reflux; Inert atmosphere; | 80% |
| With hydrazine hydrate | 66% |
| With hydrazine hydrate |
| Conditions | Yield |
|---|---|
| With hydrazine hydrate for 0.0472222h; Microwave irradiation; | 80% |
| With hydrazine hydrate; triethylamine; fluoro-N,N,N',N'-tetramethylformamidinium hexafluorophosphate In N,N-dimethyl-formamide at 0 - 20℃; for 0.833333h; | |
| Stage #1: 2-furanoic acid With sulfuric acid In ethanol Stage #2: With hydrazine hydrate |
| Conditions | Yield |
|---|---|
| With hydrazine hydrate |
- 3326-71-4
2-furoic acid hydrazide
| Conditions | Yield |
|---|---|
| With hydrazine hydrate |
- 1006894-82-1
N'-[benz-(E)-ylidene]furan-2-ylcarbohydrazide
- 3326-71-4
2-furoic acid hydrazide
| Conditions | Yield |
|---|---|
| With water In phosphate buffer; ethanol at 25℃; pH=2.47; Kinetics; Further Variations:; pH-values; Reagents; | |
| In phosphate buffer; ethanol pH=2.47; Kinetics; Further Variations:; pH-values; |
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: H2SO4 2: H2NNH2*H2O View Scheme |
| Conditions | Yield |
|---|---|
| With pyridine; hydrazine In tetrahydrofuran at 0 - 50℃; for 2h; | |
| Multi-step reaction with 2 steps 1: Reflux 2: hydrazine hydrate View Scheme | |
| Multi-step reaction with 2 steps 1: triethylamine / 1 h / 20 °C / Inert atmosphere 2: hydrazine hydrate / methanol / 3 h / Reflux View Scheme |
- 1006894-82-1
N'-[benz-(E)-ylidene]furan-2-ylcarbohydrazide
A
- 3326-71-4
2-furoic acid hydrazide
B
- 100-52-7
benzaldehyde
| Conditions | Yield |
|---|---|
| With water In ethanol pH=2.47; Rate constant; Phosphoric acid buffer; | |
| With water In ethanol pH=4.48; Rate constant; Citric acid buffer; |
A
- 14371-10-9
(E)-3-phenylpropenal
B
- 3326-71-4
2-furoic acid hydrazide
| Conditions | Yield |
|---|---|
| With water In ethanol pH=2.47; Rate constant; Phosphoric acid buffer; | |
| With water In ethanol pH=4.48; Rate constant; Citric acid buffer; |
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Chemistry
Molecular Structure of 2-Furancarboxylic acid,hydrazide (CAS NO.3326-71-4):
.png)
IUPAC Name: furan-2-carbohydrazide
Empirical Formula: C5H6N2O2
Molecular Weight: 126.1132
H bond acceptors: 4
H bond donors: 3
Freely Rotating Bonds: 2
Polar Surface Area: 36.69 Å2
Index of Refraction: 1.535
Molar Refractivity: 31.07 cm3
Molar Volume: 99.7 cm3
Surface Tension: 48.8 dyne/cm
Density: 1.264 g/cm3
Flash Point: °C
Enthalpy of Vaporization: kJ/mol
Boiling Point: °C at 760 mmHg
Vapour Pressure: mmHg at 25°C
Melting Point: 77-79 °C(lit.)}
BRN: 114435
InChI
InChI=1/C5H6N2O2/c6-7-5(8)4-2-1-3-9-4/h1-3H,6H2,(H,7,8)
Smiles
c1(C(NN)=O)ccco1
Product Categories: Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 60mg/kg (60mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Journal of Pharmacology and Experimental Therapeutics. Vol. 122, Pg. 110, 1958. |
Safety Profile
Hazard Codes: 
Xn
Risk Statements: 36/37/38-20/21/22
R36/37/38:Irritating to eyes, respiratory system and skin.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 22-24/25-36/37/39-26
S22:Do not breathe dust.
S24/25:Avoid contact with skin and eyes.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
RTECS: LV1925000
HS Code: 29321900
Specification
2-Furancarboxylic acid,hydrazide , with CAS number of 3326-71-4, can be called 2-furancarbohydrazonicacid ; 2-furancarbonylhydrazide ; 2-furancarboxylicacid,hydrazide ; 2-furoylhydrazide ; 2-furylcarbonylhydrazide ; 2-furylcarboxylicacidhydrazide ; pyromucicacidhydrazide ; AKOS BBS-00004105 .It is a beige crystal.