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Name	Salicylhydrazide	EINECS	213-311-3
CAS No.	936-02-7	Density	1.318 g/cm³
PSA	75.35000	LogP	1.08690
Solubility	N/A	Melting Point	147-150 °C(lit.)
Formula	C₇H₈N₂O₂	Boiling Point	274.61°C (rough estimate)
Molecular Weight	152.153	Flash Point	N/A
Transport Information	N/A	Appearance	white to off-white crystalline powder
Safety	26-36	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
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;	Article Data	176

Salicylhydrazide Synthetic route

: 118-61-6
2-hydroxy-benzoic acid ethyl ester

: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

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%

: 119-36-8
methyl salicylate

: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

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%

: 69-72-7
salicylic acid

: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

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%

: 2052-14-4
n-butyl salicylate

: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

Conditions	Yield
With hydrazine hydrate In ethanol for 6h; Reflux;	74.4%

: 118-55-8
phenyl Salicylate

: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

Conditions	Yield
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;

: 607697-15-4
methyl 2-amino-4-(4-methoxyphenyl)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carboxylate

A: 1184912-51-3
3-(5-amino-3-oxopyrazolin-4-yl)-3-(4-methoxyphenyl)propanoylhydrazide

B: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

Conditions	Yield
With hydrazine hydrate In ethanol for 8h; Reflux;	A 41% B n/a

: 59395-02-7, 18269-02-8
N'-benzylidene-2-hydroxybenzohydrazide

A: 100-52-7
benzaldehyde

B: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

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.);

: 87444-18-6
2'-(4-dimethylaminobenzylidene)-2-hydroxybenzoylhydrazide

A: 936-02-7
2-Hydroxybenzoylhydrazine

B: 100-10-7
4-dimethylamino-benzaldehyde

Conditions

Conditions	Yield
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.);

: 72323-41-2
N'-[(4-nitrophenyl)methylidene]-2-hydroxybenzohydrazide

A: 555-16-8
4-nitrobenzaldehdye

B: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

Conditions	Yield
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.);

: 3291-01-8
N'-[(4-methoxyphenyl)methylidene]-2-hydroxybenzohydrazide

A: 123-11-5
4-methoxy-benzaldehyde

B: 936-02-7
2-Hydroxybenzoylhydrazine

Conditions

Conditions	Yield
With ethanol-acidic buffer Rate constant; Thermodynamic data; -ΔG(excit.), ΔH(excit.),-ΔS(excit), Ea(excit.);

Salicylhydrazide Chemical Properties

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

Salicylhydrazide Toxicity Data With Reference

ipr-mus LD50:100 mg/kg

JMPCAS Journal of Medicinal and Pharmaceutical Chemistry. 4 (1961),259.

Salicylhydrazide Consensus Reports

Reported in EPA TSCA Inventory.

Salicylhydrazide Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits toxic vapors of NO_x.
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

Salicylhydrazide Specification

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.

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