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Name	Analgin	EINECS	200-694-7
CAS No.	5907-38-0	Density	N/A
PSA	95.75000	LogP	1.50410
Solubility	N/A	Melting Point	221℃
Formula	C₁₃H₁₆N₃NaO₄S	Boiling Point	N/A
Molecular Weight	351.359	Flash Point	N/A
Transport Information	N/A	Appearance	White or almost white crystal powder
Safety	36/37	Risk Codes	63
Molecular Structure		Hazard Symbols	Xn
Synonyms	Dipyrone;Sulpyrine (TN);Sulpyrine (JAN);Dipyrone (USAN);Metamizole Sodium (Analgin);Benzalagen;

Analgin Synthetic route

: 50-00-0
formaldehyd

: 83-07-8
4-amino-2,3-dimethyl-1-phenylpyrazolin-5-one

: 77-78-1
dimethyl sulfate

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

Conditions

Conditions	Yield
With sodium carbonate at 40℃; Neutralisieren und Erhitzen mit NaHSO3;

: 519-98-2
4-methylaminoantipyrine

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

Conditions

Conditions	Yield
With sodium hydrogensulfite dann Behandeln mit Formaldehyd-Loesung und anschliessendem Erwaermen;

: cobalt(II) chloride hexahydrate

: 93-68-5
3-oxo-N-o-tolylbutanamide

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: [cobalt(II)(Cl)(C11H12NO2)(2,3-dimethyl-4-methylaminomethanesulphonate sodium monohydrate-1-phenyl-3-pyrazoline-5-one)(H2O)2]

Conditions

Conditions	Yield
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.;	69%

: cobalt(II) chloride hexahydrate

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: 102-01-2
N-phenylacetoacetamide

: [cobalt(II)(Cl)(C10H10NO2)(2,3-dimethyl-4-methylaminomethanesulphonate sodium monohydrate-1-phenyl-3-pyrazoline-5-one)(H2O)2]

Conditions

Conditions	Yield
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.;	68%

: 92-15-9
2'-methoxyacetoacetanilide

: cobalt(II) chloride hexahydrate

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: [cobalt(II)(Cl)(C11H12NO3)(2,3-dimethyl-4-methylaminomethanesulphonate sodium monohydrate-1-phenyl-3-pyrazoline-5-one)(H2O)2]

Conditions

Conditions	Yield
With NH3 In ethanol byproducts: H2O, HCl; addn. of ligands to soln. of co-salt (stirring), refluxing (1 h, 80°C), cooling, neutralization (NH3); filtration, washing (EtOH), drying (vac.); elem. anal.;	67%

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: 102-01-2
N-phenylacetoacetamide

: mercury dichloride

: chloro(2,3-dimethyl-4-methylaminomethanesulphonate sodium-1-phenyl-3-pyrazoline-5-one)(acetoacetanilidato)mercury(II)

Conditions

Conditions	Yield
In ethanol mixing stoichiometric quantities of HgCl2, acetoacetanilide and pyrazoline-5-one derivative in ethanol, refluxing for 15-20 min over a hot plate at 80°C to yield a transparent soln., further refluxing for 1-3 h, pptn.; filtn. by suction, washing several times with EtOH, drying in a desiccator over anhyd. CaCl2 at room temp. to a constant weight, elem. anal.;	60%

: potassium pentacyanonitrosylchromate(III) monohydrate

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: 2Na(1+)*(Cr(NO)(CN)2H2O(C6H5NNCH3CCH3(CO)CNCH3CH2SO3)2)(2-)=Cr(NO)(CN)2H2O(C6H5NNCH3CCH3(CO)CNCH3CH2SO3Na)2

Conditions

Conditions	Yield
In water; acetic acid byproducts: CH3COOK, HCN; aq. acetic acid; addn. of aq. soln. of ligand to aq. soln. of K3(Cr(NO)(CN)5), pptn. (heating, 80°C, 35 min), liberating of HCN (purged with CO2, 3 h); sepn. (filtration off), washing (dil. CH3COOH, water), drying (room temp., vac., to const. wt.); elem. anal.;	58%

: 118-93-4
o-hydroxyacetophenone

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: mercury dichloride

: chloro(2,3-dimethyl-4-methylaminomethanesulphonate sodium-1-phenyl-3-pyrazoline-5-one)(o-hydroxyacetophenonato)mercury(II)

Conditions

Conditions	Yield
In ethanol mixing stoichiometric quantities of HgCl2, o-hydroxyacetophenone and pyrazoline-5-one derivative in ethanol, refluxing for 15-20 min over a hot plate at 80°C to yield a transparent soln., further refluxing for 1-3 h, pptn.; filtn. by suction, washing several times with EtOH, drying in a desiccator over anhyd. CaCl2 at room temp. to a constant weight, elem. anal.;	58%

: nickel(II) chloride hexahydrate

: 59261-47-1
4-benzoyloxime-3-methyl-1-phenyl-2-pyrazoline-5-one

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: bis(4-benzoyloxime-3-methyl-1-phenyl-2-pyrazoline-5-ono)bis(2,3-dimethyl-4-methylaminomethanesulfonate sodium-1-phenyl-3-pyrazoline-5-one)nickel(II)

Conditions

Conditions	Yield
In ethanol; water mixt. of aq. soln. of NiCl2 and ethanolic soln. of ligands refluxed for 30-60 min; ppt. filtered by suction, washed (ethanol), dried in vac.; elem. anal.;	56%

: vanadyl(IV) sulphate pentahydrate

: 5907-38-0
2,3-dimethyl-4-dimethylaminomethanesulphonatesodium monohydrate-1-phenyl-3-pyrazoline-5-one

: 50433-20-0
potassium succinimide

: di(succinimido)aqua(2,3-dimethyl-4-methylamino(methanesulfonate sodium)-1-phenyl-3-pyrazoline-5-one)oxovanadium(IV)

Conditions

Conditions	Yield
In ethanol; water to mixt. of aq. soln. of VOSO4 and KN(C(O)CH2)2 ethanolic soln. of pyrazoline derivative added, soln. refluxed for 30-40 min at 80 °C, stand for 30 min; ppt. filtered, washed (1:1 H2O/C2H5OH), dried (dessicator over anhydrousCaCl2); elem. anal.;	56%

Analgin Chemical Properties

Molecular Formula of Analgin (CAS NO.5907-38-0): C₁₃H₁₈N₃NaO₅S
Molecular Weight: 351.35
storage temp.: 2-8 °C
Appearance: White or light yellow crystalline powder, odorless, tiny bitter
Structure of Analgin (CAS NO.5907-38-0):

IUPAC Name: Sodium[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-methylamino]methanesulfonate

Analgin Uses

Analgin (CAS NO.5907-38-0) is antipyretic analgesics of pyrazolones. It is indicated for treatment diseases caused by high fever and various pain. It is also indicated in fever, headache, rheumatic pain, neuralgia and dysmenorrheal ect.

Analgin Specification

Analgin , its cas register number is 5907-38-0. It also can be called Dipyron ; Metamizol ; Methapyrone ; Sulpyrine ; and Sodium [(1,5-dimethyl-3-oxo-2-phenyl-pyrazol-4-yl)-methyl-amino]methanesulfonate .

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