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Name	Sodium toluene-4-sulphinate	EINECS	212-538-5
CAS No.	824-79-3	Density	1.399-1.405 at 20℃
PSA	59.34000	LogP	2.09870
Solubility	soluble in water	Melting Point	>300 °C(lit.)
Formula	C₇H₈O₂S.Na	Boiling Point	340 °C at 760 mmHg
Molecular Weight	178.187	Flash Point	159.4 °C
Transport Information	N/A	Appearance	white to off-white crystalline powder
Safety	22-24/25-37/39-26	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Benzenesulfinicacid, 4-methyl-, sodium salt (9CI);p-Toluenesulfinic acid, sodium salt(6CI,8CI);4-Methylbenzenesulfinic acid sodium salt;NSC 4871;NSC 9077;Sodium4-methylbenzenesulfinate;Sodium 4-toluenesulfinate;Sodiump-methylbenzenesulfinate;Sodium p-toluenesulfinate;Sodium p-tolylsulfinate;	Article Data	86

Sodium toluene-4-sulphinate Synthetic route

: 2943-42-2
di(4-methyl)phenylthiosulfonate

: 544-92-3
copper(I) cyanide

A: 5285-74-5
4-tolyl thiocyanate

B: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
In acetonitrile at 100℃; for 12h;	A 93% B 100%

: 98-59-9
p-toluenesulfonyl chloride

: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
With hydrazine hydrate; sodium carbonate In water at 80℃; for 2h;	97.8%
With sodium carbonate; sodium sulfite In water at 52℃; pH=7.2; Temperature;	96.9%
With sodium hydrogencarbonate; sodium sulfite In water at 70 - 80℃; for 1h;	96%

: 536-57-2
p-toluene sulfinic acid

: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
With sodium hydroxide In methanol; water at 40℃; for 2h;	96.6%

: 50-00-0
formaldehyd

: 98-59-9
p-toluenesulfonyl chloride

: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
Stage #1: p-toluenesulfonyl chloride With sodium hydrogencarbonate; sodium sulfite In water at 70 - 80℃; for 1h; Stage #2: formaldehyd at 90℃;	96%

: C29H33N3O3S

A: 824-79-3
sodium 4-methylbenzenesulfinate

B: 1-Cyclohexyl-4-(4-methoxy-phenyl)-6-phenyl-1,6-dihydro-[1,2,3]triazine

Conditions

Conditions	Yield
With sodium hydride In monoethylene glycol diethyl ether 5 h, room t. then 15 min, reflux;	A n/a B 95%

: 108-88-3
toluene

: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
Stage #1: toluene With aluminum (III) chloride; 1,4-diazabicyclo [2.2.2] octane-1,4-diium-1,4-disulfinate In dichloromethane at 0℃; for 2h; Stage #2: With sodium hydrogencarbonate In dichloromethane; water at 0℃;	95%
With aluminum (III) chloride; 1,4-diazabicyclo [2.2.2] octane-1,4-diium-1,4-disulfinate; sodium hydrogencarbonate In dichloromethane; water at 20 - 30℃;	83%

: C28H30N4O4S

A: 824-79-3
sodium 4-methylbenzenesulfinate

B: 1-Cyclohexyl-6-(4-nitro-phenyl)-4-phenyl-1,6-dihydro-[1,2,3]triazine

Conditions

Conditions	Yield
With sodium hydride In monoethylene glycol diethyl ether 5 h, room t. then 15 min, reflux;	A n/a B 93%

: C28H31N3O2S

A: 824-79-3
sodium 4-methylbenzenesulfinate

B: 1-Cyclohexyl-4,6-diphenyl-1,6-dihydro-[1,2,3]triazine

Conditions

Conditions	Yield
With sodium hydride In monoethylene glycol diethyl ether 5 h, room t. then 15 min, reflux;	A n/a B 92%

: C29H27N3O2S

A: 824-79-3
sodium 4-methylbenzenesulfinate

B: 1-Benzyl-4,6-diphenyl-1,6-dihydro-[1,2,3]triazine

Conditions

Conditions	Yield
With sodium hydride In monoethylene glycol diethyl ether 5 h, room t. then 15 min, reflux;	A n/a B 91%

: 1192657-22-9
N-(9,10-dioxo-9,10-dihydroanthracen-1-yl)-S-methyl-S-(4-methylphenyl)sulfoximide

A: 42326-31-8
2,6-dihydronaphtho[1,2,3-cd]indol-6-one

B: 824-79-3
sodium 4-methylbenzenesulfinate

Conditions

Conditions	Yield
With sodium methylate In tetrahydrofuran for 0.333333h; Reflux;	A 91% B 76%

Sodium toluene-4-sulphinate Chemical Properties

Molecular Structure of Sodium toluene-4-sulphinate (CAS NO.824-79-3):

Molecular Formula: C₇H₇NaO₂S
Molecular Weight:178.184
CAS NO: 824-79-3
IUPAC Name: Sodium 4-methylbenzenesulfinate
EINECS: 212-538-5
Flash Point: 159.4 °C
Enthalpy of Vaporization: 61.59 kJ/mol
Boiling Point: 340 °C at 760 mmHg
Vapour Pressure: 3.42E^-0.5 mmHg at 25°C
Melting point: >300 °C(lit.)
Sensitive: Hygroscopic
Appearance: White powder
Solubility: Soluble in ethanol, water and ether.
Product Categories: Industrial/Fine Chemicals; FINE Chemical & INTERMEDIATES

Sodium toluene-4-sulphinate Uses

Sodium toluene-4-sulphinate (CAS NO.824-79-3) is used as intermediates of a medicine, disperse dye, are also used as curing agent for grouting material .

Sodium toluene-4-sulphinate Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
guinea pig	LD50	skin	> 1gm/kg (1000mg/kg)	Kodak Company Reports. Vol. 21MAY1971,
rat	LDLo	intraperitoneal	1600mg/kg (1600mg/kg)	Kodak Company Reports. Vol. 21MAY1971,
rat	LDLo	oral	3200mg/kg (3200mg/kg)	Kodak Company Reports. Vol. 21MAY1971,

Sodium toluene-4-sulphinate Consensus Reports

Reported in EPA TSCA Inventory.

Sodium toluene-4-sulphinate Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of SO_x and Na₂O.
Hazard Codes Irritant Xi
Risk Statements 36/37/38
R36/37/38: Sodium toluene-4-sulphinate (CAS NO.824-79-3) is irritating to eyes, respiratory system and skin.
Safety Statements 22-24/25-37/39-26
S22:Do not breathe dust.
S24/25:Avoid contact with skin and eyes.
S37/39:Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany 2
RTECS XT4725000
F 3
Hazard Note Irritant

Sodium toluene-4-sulphinate Specification

Sodium toluene-4-sulphinate , its CAS NO. is 824-79-3, the synonyms are p-Toluenesulfinic acid sodium salt ; 4-Toluenesulfinic acid sodium salt ; Sodium p-toluene sulfinate .

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