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CAS No.: | 936-02-7 |
---|---|
Name: | Salicylhydrazide |
Article Data: | 176 |
Molecular Structure: | |
Formula: | C7H8N2O2 |
Molecular Weight: | 152.153 |
Synonyms: | o-Hydroxybenzhydrazide;o-Hydroxybenzoic acid hydrazide;o-Hydroxybenzoylhydrazide;Salicylicacid, hydrazide (6CI,7CI,8CI);2-Hydroxybenzenecarboxylic acid hydrazide;2-Hydroxybenzoic acid hydrazide;2-Hydroxybenzoichydrazide;NSC 652;Salicyl hydrazide;Salicyloyl hydrazide; |
EINECS: | 213-311-3 |
Density: | 1.318 g/cm3 |
Melting Point: | 147-150 °C(lit.) |
Boiling Point: | 274.61°C (rough estimate) |
Appearance: | white to off-white crystalline powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-36 |
PSA: | 75.35000 |
LogP: | 1.08690 |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol at 70℃; for 0.00111111h; | 99.1% |
With hydrazine hydrate In ethanol; water Reflux; | 85% |
With hydrazine hydrate In ethanol at 80℃; for 12h; | 82% |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol for 0.0166667h; microwave irradiation; | 98% |
With hydrazine hydrate In methanol for 6h; Reflux; | 94.9% |
With hydrazine hydrate In methanol for 12h; Reflux; | 92% |
Conditions | Yield |
---|---|
With hydrazine hydrate for 0.0388889h; Microwave irradiation; | 89% |
Stage #1: salicylic acid With sulfuric acid In ethanol for 6h; Reflux; Stage #2: With hydrazine hydrate; sodium hydrogencarbonate; acetic acid Reflux; | 85% |
Stage #1: salicylic acid With potassium carbonate; dimethyl sulfate In acetone at 55℃; for 24h; Stage #2: With hydrazine hydrate In methanol for 2h; Reflux; | 80% |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol for 6h; Reflux; | 74.4% |
Conditions | Yield |
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With hydrazine In isopropyl alcohol for 0.333333h; Heating; | 66% |
With sodium hydroxide; hydrazine In water; acetonitrile at 30℃; Rate constant; pH=11.68-12.46, variation of pH; |
methyl 2-amino-4-(4-methoxyphenyl)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carboxylate
A
3-(5-amino-3-oxopyrazolin-4-yl)-3-(4-methoxyphenyl)propanoylhydrazide
B
2-Hydroxybenzoylhydrazine
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol for 8h; Reflux; | A 41% B n/a |
N'-benzylidene-2-hydroxybenzohydrazide
A
benzaldehyde
B
2-Hydroxybenzoylhydrazine
Conditions | Yield |
---|---|
With ethanol-acidic buffer Rate constant; Thermodynamic data; the effects of pH, and temperature on the reaction rate and the activation energy and thermodynamic parameters; | |
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.), -ΔS(excit), Ea(excit.); |
2'-(4-dimethylaminobenzylidene)-2-hydroxybenzoylhydrazide
A
2-Hydroxybenzoylhydrazine
B
4-dimethylamino-benzaldehyde
Conditions | Yield |
---|---|
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.); |
N'-[(4-nitrophenyl)methylidene]-2-hydroxybenzohydrazide
A
4-nitrobenzaldehdye
B
2-Hydroxybenzoylhydrazine
Conditions | Yield |
---|---|
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.); |
N'-[(4-methoxyphenyl)methylidene]-2-hydroxybenzohydrazide
A
4-methoxy-benzaldehyde
B
2-Hydroxybenzoylhydrazine
Conditions | Yield |
---|---|
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.); |
IUPAC Name: 2-Hydroxybenzohydrazide
The MF of 2-Hydroxybenzohydrazide (936-02-7) is C7H8N2O2.
The MW of 2-Hydroxybenzohydrazide (936-02-7) is 152.15.
Synonyms of 2-Hydroxybenzohydrazide (936-02-7): 2-Hydroxybenzene-1-carbohydrazide ; 2-Hydroxybenzohydrazide ; Benzoic acid, 2-hydroxy-, hydrazide ; 2-Hydroxybenzoic acid hydrazide ; 2-Hydroxybenzoylhydrazine
Product Categories: Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes
Form: white to off-white crystalline powder
Index of Refraction: 1.622
EINECS: 213-311-3
Density: 1.318 g/ml
Melting Point: 147-150 °C
Solubility in water: Soluble
BRN: 472355
1. | ipr-mus LD50:100 mg/kg | JMPCAS Journal of Medicinal and Pharmaceutical Chemistry. 4 (1961),259. |
Reported in EPA TSCA Inventory.
Poison by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx.
Safety information of 2-Hydroxybenzohydrazide (936-02-7):
Hazard Codes Xi
Risk Statements
36/37/38 Irritating to eyes, respiratory system and skin
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36 Wear suitable protective clothing
WGK Germany 3
RTECS VO3700000
Store in a cool, dry place. Keep container closed when not in use.Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.