Primachemicals

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Profile: Primachemicals is a manufacturer of pigments, acid dyes, solvent dyes, bulk drugs and certain agro products. Our products include 1-Phenyl-3-methyl-5-pyrazolone, para tolyl -3-methyl-5-pyrazolone, 3-methyl-5-pyrazolone, 1-(2-methyl-4-sulphophenyl)-3-methyl-5-pyrazolone, 3-methyl-1-(3-sulphophenyl)-5-pyrazolimine and 3-methyl-1-phenyl-5-pyrazolimine.

19 Products/Chemicals (Click for related suppliers)

• benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl)-3-methyl-

IUPAC Name: 3-methyl-4-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 118-07-0
Synonyms: ST049480, Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-3-methyl-, BAS 00127991, AC1Q6WVN, AC1L26PK, MLS000714417, CHEMBL1547454, CTK4B0555, MolPort-001-915-763, HMS2693C23, EINECS 204-232-5, AR-1H8842, STK396412, AKOS000730788, AG-J-14278, MCULE-4439734061, NCGC00245025-01, SMR000274396, A2192/0092184, 3-methyl-4-(3-methyl-5-oxo(2-pyrazolinyl))benzenesulfonic acid

Molecular Formula:	C₁₁H₁₂N₂O₄S	Molecular Weight:	268.288980 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: AJPUJTAMBSRTEG-UHFFFAOYSA-N

• Benzenesulfonicacid, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-4-methyl-

IUPAC Name: 4-methyl-3-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 5466-86-4
Synonyms: STK380582, 4-methyl-3-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid, benzenesulfonic acid, 3-(4,5-dihydro-3-methyl-5-oxo-1h-pyrazol-1-yl)-4-methyl-, NSC26426, AC1L5KOV, AC1Q6WXP, CTK1H4968, MolPort-002-333-213, AR-1H8833, BBL005952, NSC-26426, AKOS005449926, AG-J-14277, MCULE-9269348632, ST50876092, 4-methyl-3-(3-methyl-5-oxo(2-pyrazolinyl))benzenesulfonic acid, 4-methyl-3-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid, p-Toluenesulfonicacid, 3-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (6CI); NSC 26426

Molecular Formula:	C₁₁H₁₂N₂O₄S	Molecular Weight:	268.288980 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: APXZUKPCHGKOTB-UHFFFAOYSA-N

• m-(4,5-dihydro-5-imino-3-methyl-1H-pyrazol-1-yl)benzenesulphonic acid

IUPAC Name: 3-(5-imino-3-methyl-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 68083-38-5
Synonyms: AG-G-59617, m-(4,5-Dihydro-5-imino-3-methyl-1H-pyrazol-1-yl)benzenesulphonic acid, 3-[(5e)-5-imino-3-methyl-4,5-dihydro-1h-pyrazol-1-yl]benzenesulfonic acid, AC1Q6WRM, AC1Q2PG5, AC1L30D9, CTK5C7279, 3-(3-Methyl-5-imino-2-pyrazolin-1-yl)benzenesulfonic acid, EINECS 268-387-0, AR-1F0661, 3-(5-imino-3-methyl-4H-pyrazol-1-yl)benzenesulfonic acid, 3-(5-imino-3-methyl-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid, Benzenesulfonic acid, 3-(4,5-dihydro-5-imino-3-methyl-1H-pyrazol-1-yl)-

Molecular Formula:	C₁₀H₁₁N₃O₃S	Molecular Weight:	253.277640 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	5

InChIKey: INHXSMASASFALB-UHFFFAOYSA-N

• S.P.C.P.

IUPAC Name: 5-oxo-1-(4-sulfophenyl)-4H-pyrazole-3-carboxylic acid | CAS Registry Number: 118-47-8
Synonyms: Pyrazolone T, CBDivE_003373, EINECS 204-254-5, NSC 50665, NSC50665, NSC51118, BRN 0689305, BAS 00009450, ST009479, LS-128321, 5-Oxo-1-(4-sulphophenyl)-2-pyrazoline-3-carboxylic acid, 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, 2-Pyrazoline-3-carboxylic acid, 5-oxo-1-(p-sulfophenyl)-, 4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid, 2-Pyrazoline-3-carboxylic acid, 5-oxo-1-(p-sulfophenyl)- (6CI,7CI,8CI), 5-Oxo-1-(4-sulfo-phenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid, PYT

Molecular Formula:	C₁₀H₈N₂O₆S	Molecular Weight:	284.245320 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	7

InChIKey: TYCNXOAPQGVAQU-UHFFFAOYSA-N

• 1-(2'-Chloro) phenyl-3-Methyl-5-Pyrazolone

IUPAC Name: 2-(2-chlorophenyl)-5-methyl-4H-pyrazol-3-one | CAS Registry Number: 14580-22-4
Synonyms: 551279_ALDRICH, ZINC04016422, CID84534, EINECS 238-623-7, 1-(2'-Chlorophenyl)-3-methyl-5-pyrazolone, 1-(2-Chlorophenyl)-3-methyl-2-pyrazolin-5-one, T5294980, 3H-Pyrazol-3-one, 2-(2-chlorophenyl)-2,4-dihydro-5-methyl-, 2-(2-Chlorophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one

Molecular Formula:	C₁₀H₉ClN₂O	Molecular Weight:	208.644260 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	2

InChIKey: CWESERWNUIUBJU-UHFFFAOYSA-N

• 1-(3'-Chloro)-phenyl-3-Methyl-5-Pyrazolone

IUPAC Name: 2-(4-chlorophenyl)-5-methyl-1H-pyrazol-3-one | CAS Registry Number: 13024-90-3
Synonyms: STOCK6S-35546, ZINC00752642, ZINC05212215, 1-(p-CHLOROPHENYL)-3-METHYL-5-PYRAZOLONE, T0502-4944

Molecular Formula:	C₁₀H₉ClN₂O	Molecular Weight:	208.644260 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: BNMJZURGOFYNQV-UHFFFAOYSA-N

• 1-Phenyl-3-Carbethoxy 5 Pyrazolone

IUPAC Name: ethyl 5-oxo-1-phenyl-4H-pyrazole-3-carboxylate | CAS Registry Number: 89-33-8
Synonyms: 1-Phenyl-3-carbethoxypyrazolone, Oprea1_379823, Oprea1_648371, MLS000711712, NSC49150, NSC57876, EINECS 201-899-4, NSC 49150, ZINC00341984, 3-(Ethoxycarbonyl)-1-phenyl-5-pyrazolone, BAS 00613360, SMR000281479, ST5235748, Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate, 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-phenyl-, ethyl ester, 1-Phenyl-5-oxo-2-pyrazoline-3-carboxylic acid, ethyl ester, 2-Pyrazoline-3-carboxylic acid, 5-oxo-1-phenyl-, ethyl ester, 2-Pyrazoline-3-carboxylic acid, 5-oxo-1-phenyl-, ethyl ester (8CI), 5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid ethyl ester

Molecular Formula:	C₁₂H₁₂N₂O₃	Molecular Weight:	232.235280 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	4

InChIKey: WBFXQKNQVZMOSQ-UHFFFAOYSA-N

• 3-Methyl-2-pyrazolin-5-one

IUPAC Name: 3-methyl-1,4-dihydropyrazol-5-one | CAS Registry Number: 108-26-9
Synonyms: 3-Methyl-5-pyrazolone, 3Me5Oxopyrazol, 2-PYRAZOLIN-5-ONE, 3-METHYL-, NSC4120, 3-Methyl-pyrazolon-(5) [German], 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-, NSC 4120, EINECS 203-565-3, AIDS009162, AIDS-009162, BRN 0606503, SBB004372, 2,4-Dihydro-5-methyl-3H-pyrazol-3-one, LS-128896, 206195-93-9, 4344-87-0

Molecular Formula:	C₄H₆N₂O	Molecular Weight:	98.103240 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: NHLAPJMCARJFOG-UHFFFAOYSA-N

• 1-(2'-Chloro-5'-sulfophenyl)-3-methyl-5-pyrazolone

IUPAC Name: 4-chloro-3-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 88-76-6
Synonyms: NSC4691, 556874_ALDRICH, CID66625, NSC26425, EINECS 201-858-0, NSC 26425, ST5410475, 1-(2-Chloro-5-sulfophenyl)-3-methyl-5-pyrazolone, 3-Methyl-1-(2-chloro-5-sulfophenyl)-5-pyrazolone, Benzenesulfonic acid, 4-chloro-3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, 1-(2-Chloro-5-sulfophenyl)-3-methyl-2-pyrazolin-5-one, 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid, 4-Chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid, Benzenesulfonic acid, 4-chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)-, Benzenesulfonic acid, 4-chloro-3-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI)

Molecular Formula:	C₁₀H₉ClN₂O₄S	Molecular Weight:	288.707460 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: UWLNKHDLVZEYKQ-UHFFFAOYSA-N

• 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one

IUPAC Name: 2-(3-chlorophenyl)-5-methyl-4H-pyrazol-3-one | CAS Registry Number: 90-31-3
Synonyms: Maybridge4_003722, MLS000517175, 429511_ALDRICH, EINECS 201-984-6, NSC166399, ZINC00105184, NSC 166399, SMR000343344, ST5409516, 2-Pyrazolin-5-one, 1-(m-chlorophenyl)-3-methyl-, 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl-, 2-Pyrazolin-5-one, 1-(m-chlorophenyl)-3-methyl- (8CI), 2-(3-Chlorophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one

Molecular Formula:	C₁₀H₉ClN₂O	Molecular Weight:	208.644260 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	2

InChIKey: RIOMUJXIGYZENC-UHFFFAOYSA-N

• 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone

IUPAC Name: 3-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 119-17-5
Synonyms: 556890_ALDRICH, NSC50668, CID67060, NSC15354, EINECS 204-303-0, NSC 15354, 1-(3-Sulfophenyl)-3-methyl-2-pyrazolin-5-one, 1-(m-SULFOPHENYL)-3-METHYL-5-PYRAZOLONE, TECH, Benzenesulfonic acid, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, Benzenesulfonic acid, m-(3-methyl-5-oxo-2-pyrazolin-1-yl)-, Benzenesulfonic acid, m-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI), m-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonic acid, 123633-48-7

Molecular Formula:	C₁₀H₁₀N₂O₄S	Molecular Weight:	254.262400 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: VEMGKBUHUTYHHA-UHFFFAOYSA-N

• 3-Methyl-1-(3'-sulfoamidophenyl)-5-pyrazolone

IUPAC Name: 3-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonamide | CAS Registry Number: 89-29-2
Synonyms: Maybridge1_006372, CBDivE_007658, 562971_ALDRICH, NSC15355, EINECS 201-895-2, NSC 15355, ZINC04006010, BAS 00328923, RH 01325, AE-641/00786007, Benzenesulfonamide, m-(3-methyl-5-oxo-2-pyrazolin-1-yl)-, SR-01000635789-1, Benzenesulfonamide, 3-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, 3-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide, 3-(3-Methyl-5-oxo-4,5-dihydro-pyrazol-1-yl)-benzenesulfonamide, Benzenesulfonamide, m-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI), m-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonamide

Molecular Formula:	C₁₀H₁₁N₃O₃S	Molecular Weight:	253.277640 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: ASVVGQURNHNITH-UHFFFAOYSA-N

• 3-Methyl-1-(4'-sulfoamidophenyl)-5-pyrazolone

IUPAC Name: 4-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonamide | CAS Registry Number: 13269-73-3
Synonyms: LeadQuest Compound 4, Oprea1_708796, Oprea1_797937, 562963_ALDRICH, AIDS020271, AIDS-020271, EINECS 236-265-6, ZINC00092096, BAS 03441265, ST5272250, p-(3-Methyl-5-oxo-2-pyrazolin-1-yl)-benzenesulfonamide, 4-(3-Methyl-5-oxo-4,5-dihydro-pyrazol-1-yl)-benzenesulfonamide, p-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonamide

Molecular Formula:	C₁₀H₁₁N₃O₃S	Molecular Weight:	253.277640 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: GLOOJKUWIGSFGC-UHFFFAOYSA-N

• 2-(4,5-DIHYDRO-3-METHYL-5-OXO-1H-PYRAZOL-1-YL)BENZENE-1,4-DISULFONIC ACID

IUPAC Name: 2-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzene-1,4-disulfonic acid | CAS Registry Number: 54817-63-9
Synonyms: EINECS 259-362-5, CID108626, 2-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzene-1,4-disulphonic acid

Molecular Formula:	C₁₀H₁₀N₂O₇S₂	Molecular Weight:	334.325600 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	8

InChIKey: ZGXJVLAIEZQGHY-UHFFFAOYSA-N

• 1-(2-Chloro-5-Sulfophenyl)-3-Methyl-5-Aminopyrazole

IUPAC Name: 3-(5-amino-3-methylpyrazol-1-yl)-4-chlorobenzenesulfonic acid | CAS Registry Number: 68227-68-9
Synonyms: 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)-4-chlorobenzenesulphonic acid, AG-G-61279, 3-(5-amino-3-methyl-1h-pyrazol-1-yl)-4-chlorobenzenesulfonic acid, AC1Q6WXR, AC1L36P3, CTK5C7573, EINECS 269-380-5, AR-1E7154, 1-(2-Chloro-5-sulfophenyl)-3-methyl-5-aminopyrazole, 2-(2'-Chloro-5'-sulfophenyl)-5-methyl-3-pyrazolamine, 3-(5-amino-3-methylpyrazol-1-yl)-4-chlorobenzenesulfonic acid, Benzenesulfonic acid, 3-(5-amino-3-methyl-1H-pyrazol-1-yl)-4-chloro-

Molecular Formula:	C₁₀H₁₀ClN₃O₃S	Molecular Weight:	287.722700 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	5

InChIKey: LVSMGNXVKQOJGO-UHFFFAOYSA-N

• 1 Phenyl 3 Methyl 5 Pyrazolone

IUPAC Name: 5-methyl-2-phenyl-4H-pyrazol-3-one | CAS Registry Number: 89-25-8
Synonyms: edaravone, Norphenazone, Radicut, Norantipyrine, Developer Z, edarabone, Methylphenylpyrazolone, Phenylmethylpyrazolone, C.I. Developer 1, CI Developer 1, Phenyl methyl pyrazolone, Radicut (TN), 1-Phenyl-3-methyl-5-pyrazolone, 1-Phenyl-3-methylpyrazolone, Spectrum_000267, Tocris-0786, MCI-186, Edaravone (JAN/INN), 3-Methyl-1-phenyl-5-pyrazolone, Maybridge1_005738

Molecular Formula:	C₁₀H₁₀N₂O	Molecular Weight:	174.199200 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	2

InChIKey: QELUYTUMUWHWMC-UHFFFAOYSA-N

• 1-(4'-Sulphophenyl)-3-Methyl-5-Pyrazolone

IUPAC Name: 4-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid | CAS Registry Number: 89-36-1
Synonyms: Pyrazoline G, 134163_ALDRICH, NSC4752, NSC26429, EINECS 201-901-3, NSC 26429, 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone, AI3-08532, 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one, A2558/0108985, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)-benzenesulfonic acid, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid, 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulphonic acid, Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-, Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)-, Benzenesulfonic acid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (8CI), 74583-53-2

Molecular Formula:	C₁₀H₁₀N₂O₄S	Molecular Weight:	254.262400 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: CWJQQASJVVAXKL-UHFFFAOYSA-N

• 1-(P-Tolyl)-3-Methyl-5-Pyrazolone

IUPAC Name: 5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one | CAS Registry Number: 86-92-0
Synonyms: 3-Methyl-1-p-tolyl-5-pyrazolone, 1-(p-Tolyl)-3-methyl-5-pyrazolone, AIDS020261, ARONIS022638, EINECS 201-708-4, 3-Methyl-1-p-tolyl-pyrazolin-5-one, AIDS-020261, CID66591, 2-Pyrazolin-5-one, 3-methyl-1-p-tolyl-, BRN 0610651, SBB003677, ZINC00053875, SDCCGMLS-0066222.P001, LS-128911, 2-Pyrazolin-5-one, 3-methyl-1-(4-methylphenyl)-, 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-methylphenyl)-

Molecular Formula:	C₁₁H₁₂N₂O	Molecular Weight:	188.225780 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	2

InChIKey: IOQOLGUXWSBWHR-UHFFFAOYSA-N

• 1-Phenyl-3-Methyl-5-Aminopyrazole (PMAP)

IUPAC Name: 5-methyl-2-phenylpyrazol-3-amine | CAS Registry Number: 1131-18-6
Synonyms: Maybridge1_002345, 1-Phenyl-3-methyl-5-aminopyrazole, 5-Amino-3-methyl-1-phenylpyrazole, MLS000104498, DivK1c_001097, 541001_ALDRICH, 3-Methyl-1-phenylpyrazol-5-ylamine, EINECS 214-463-3, 1H-Pyrazol-5-amine, 3-methyl-1-phenyl-, CID70801, BRN 0140666, CDS1_000057, Pyrazole, 5-amino-3-methyl-1-phenyl-, SBB003817, SDCCGMLS-0046251.P002, 1H-Pyrazole-5-amine, 3-methyl-1-phenyl-, SMR000054433, LS-127995, 5-25-09-00466 (Beilstein Handbook Reference)

Molecular Formula:	C₁₀H₁₁N₃	Molecular Weight:	173.214440 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: FMKMKBLHMONXJM-UHFFFAOYSA-N