Product Name: ONCBPSA CAS No: 17691-19-9 Chemical Name: 4-Chloro-3-Nitrobenzene Sulfonic Acid Empirical Formula: C6H3NO5SCl Molecular Weight: 237.5 g/mol Form Supplied: Moist Powder

Product Name: Sulpho J-Acid CAS No: 6535-70-2 Chemical Name: 2-Amino-5-naphthol-1,7-disulphonic acid Empirical Formula: C10H9NO7S2 Molecular Weight: 319 g/mol Form Supplied: Moist / Dry

Product Name: Sulpho OAVS CAS No: 121-88-0 Chemical Name: Sulpho Ortho Anisidine Vinyl Sulphone Empirical Formula: C9H13NO10S3 Molecular Weight: 391 g/mol Form Supplied: Moist / Dry

Product Name: ONAPSA CAS No: 82324-60-5 Chemical Name: 2-Nitro Aniline-4-Sulfonic Acid Empirical Formula: C6H6N2O5S Molecular Weight: 218 g/mol Form Supplied: Dry Powder

Product Name: Para Phenylenediamine 2,5 Disulfonic Acid (PPDDSA) CAS No: 7139-89-1 Chemical Name: 2,5-Diamino Benzene-1,4-Disulfonic Acid Empirical Formula: C6H8O6N2S2 Molecular Weight: 268.27 g/mol Form Supplied: Dry Powder

Product Name: Para Anisidine 2 Sulfonic Acid (PA2SA) CAS No: 6470-17-3 Chemical Name: 1-Methoxy-4-Aminobenzene-2-Sulfonic Acid Empirical Formula: C7H9NO4S Molecular Weight: 203 g/mol Form Supplied: Moist Powder

Product Name: Para Toluidine 2,5 Disulfonic Acid (PTDSA) CAS No: 26585-57-9 Chemical Name: 4-Methylaniline-2,5-Disulphonic Acid Empirical Formula: C7H9NO6S2 Molecular Weight: 267 g/mol Form Supplied: Moist Powder

Product Name: 2B Acid CAS No: 88-51-7 Chemical Name: 2-Chloro-4-aminotoluene-5-sulfonic acid Empirical Formula: C7H8ClNO3S Molecular Weight: 221.5 g/mol Form Supplied: Moist Powder

Product Name: Armstrong’s Acid CAS No: 81-04-9 Chemical Name: 1,5-Naphthalene Disulfonic Acid Empirical Formula: C10H8O6S2 Molecular Weight: 288 g/mol Form Supplied: Moist Powder

Product Name: 4B Acid (PT3SA) CAS No: 88-44-8 Chemical Name: 4-Aminotoluene-3-Sulfonic Acid Empirical Formula: C7H9NO3S Molecular Weight: 187.22 g/mol Form Supplied: Dry Powder

Product Name: BDSAChemical Name: 4,4′-Biphenyl Diamino-2,2′-Disulfonic AcidCAS No: 117-61-3Molecular Weight: 344.3 g/mol

Product Name: 4-CAPSAChemical Name: 4-Chloro-2-Amino Phenol-6-Sulfonic AcidCAS No: 88-23-3Molecular Weight: 223.5 g/mol

Product Name: M-AcidChemical Name: 3,5-Diamino-2,4,6-Trimethylbenzene Sulphonic AcidCAS No: 32432-55-6Molecular Weight: 230 g/mol

Product Name: M-Amino Acetanilide HCL (MAA-HCL)Chemical Name: M-Amino Acetanilide HydrochlorideCAS No: 621-35-2Molecular Weight: 186.5 g/mol

Product Name: P-Amino Acetanilide (PAA)Chemical Name: P-Amino AcetanilideCAS No: 122-80-5Molecular Weight: 150.18 g/mol

Product Name: 6-CAPSAChemical Name: 6-Chloro-2-Amino Phenol-4-Sulfonic AcidCAS No: 5857-94-3Molecular Weight: 223.5 g/mol

Product Name: PPDSAChemical Name: 1,4-Diamino-2-Benzenesulfonic AcidCAS No: 88-45-9Molecular Weight: 188.22 g/mol

Product Name: 1-NaphthylamineChemical Name: 1-NaphthylamineCAS No: 134-32-7Molecular Weight: 143.19 g/mol

Product Name: 6-NAPSAChemical Name: 6-Nitro-2-Aminophenol-4-Sulfonic AcidCAS No: 96-93-5Molecular Weight: 234.18 g/mol

Product Name: 4-ADAPSAChemical Name: 4-Aminodiphenylamine-2-Sulfonic Acid (Campaign Base)CAS No: 91-30-5Molecular Weight: 264 g/mol

Product Name: 2-NADPSAChemical Name: 2-Nitro-4′-Amino Diphenylamine-4-Sulfonic Acid (Campaign Base)CAS No: 135-11-5Molecular Weight: 309.3 g/mol

Product Name: 4-NADPSAChemical Name: 4-Nitro, 4′-Amino Diphenylamine-2-Sulfonic Acid (Campaign Base)CAS No: 91-29-2Molecular Weight: 309.3 g/mol

Product Name: OAPSAChemical Name: 2-Amino Phenol-4-Sulphonic AcidCAS No: 98-37-3Molecular Weight: 189.19 g/mol

Product Name: OAPSAMIDEChemical Name: 2-Amino Phenol-4-SulfonamideCAS No: 98-32-3Molecular Weight: 188.2 g/mol

Product Name: Methyl OAPSAMIDEChemical Name: 2-Amino-N-methyl-1-phenol-4-sulfonamideCAS No: 80-23-9Molecular Weight: 202.23 g/mol

Product Name: Copper Formazon BaseChemical Name: Copper Formazone of Hydrazone of 4-Sulpho Anthranilic AcidCAS No: 77840-01-8Molecular Weight: 596 g/mol

Product Name: BAS AcidChemical Name: 4-Sulfo Anthranilic Acid / 2-Amino-4-Sulfo Benzoic AcidCAS No: 98-43-1Molecular Weight: 217 g/mol

# Product Name Colour Shade 1Direct Yellow 6 2Direct Yellow 11 3Direct Red 80 4Direct Red 239 5Direct Blue 71 6Direct Orange 15 7Direct Black 168 8Basic Yellow 2 Auramine O

# Product Name Colour Shade 1Reactive Yellow 3RS C.I. Reactive Yellow 145 2Reactive Yellow ME-G4L C.I. Reactive Yellow 160A 3Reactive Orange ME-2RL C.I. Reactive Orange 122 4Reactive Red 3BS C.I. Reactive Red 195 5Reactive Red RB C.I. Reactive Red 198 6Reactive Blue M-2GE C.I. Reactive Blue 194 7Reactive Blue BB C.I. Reactive Blue 220 8Reactive Blue BRF C.I. Reactive Blue 221 9Reactive Blue FBN C.I. Reactive Blue 222 10Reactive Yellow K-4G C.I. Reactive Yellow 18 11Reactive Orange 12 C.I. Reactive Orange 12 12Reactive Orange P-3R C.I. Reactive Orange 13 13Reactive Red K-2BP C.I. Reactive Red 24 14Reactive Yellow HE-4R C.I. Reactive Yellow 84 15Reactive Yellow HE4G C.I. Reactive Yellow 105 16Reactive Orange HE-4R C.I. Reactive Orange 84 17Reactive Red KE-7B C.I. Reactive Red 141 18Reactive Blue KE-R C.I. Reactive Blue 171 19Reactive Black B C.I. Reactive Blue 5 20Reactive Yellow FG C.I. Reactive Yellow 42 21Reactive Orange KN-2G C.I. Reactive Orange 72 22Reactive Orange RNL C.I. Reactive Orange 107 23Reactive Blue KN-R C.I. Reactive Blue 19 24Reactive Blue G C.I. Reactive Blue 21 25Reactive Blue RGB C.I. Reactive Blue 250 26Reactive Black WNN C.I. Reactive Black WNN

# Product Name Colour Shade 1Direct Yellow 6 2Direct Yellow 11 3Direct Yellow 44 4Direct Yellow 86 5Direct Yellow 106 6Direct Yellow 142 7Direct Orange 39 8Direct Red 80 9Direct Red 239 10Direct Blue 71 11Direct Blue 199 12Direct Green 26 13Direct Black 168 14Direct Black 22

It’s What’s Behind Our Products

Advancing the Science of Intermediates.

Our R&D focus is simple: make better molecules, cleaner processes, and more reliable supply for the industries that depend on us.

Para Nitro Toluene Ortho Sulphonic Acid ( PNTOSA )

Product Name: PNTOSA
CAS No: 121-03-9
Chemical Name: 2-Methyl-5-nitrobenzenesulfonic acid
Empirical Formula: C7H7O5NS
Molecular Weight: 217.2 g/mol
Form Supplied: Dry Powder

Para Nitro Chloro Benzene Ortho Sulphonic Acid ( PNCBOSA )

Product Name: PNCBOSA
CAS No: 946-30-5
Chemical Name: 2-Chloro-5-Nitro Benzene Sulfonic Acid
Empirical Formula: C6H4NO5SCl
Molecular Weight: 237.5 g/mol
Form Supplied: Moist Powder

ONCBPSA

Product Name: ONCBPSA
CAS No: 17691-19-9
Chemical Name: 4-Chloro-3-Nitrobenzene Sulfonic Acid
Empirical Formula: C6H3NO5SCl
Molecular Weight: 237.5 g/mol
Form Supplied: Moist Powder

Aniline 2,5 Disulphonic Acid

Product Name: Aniline 2,5 Disulphonic Acid
CAS No: 24605-36-5
Chemical Name: Monosodium Salt of Aniline 2,5-Disulphonic Acid
Empirical Formula: C6H6NNaO6S2
Molecular Weight: 275.23 g/mol
Form Supplied: Powder

Sulpho J-Acid

Product Name: Sulpho J-Acid
CAS No: 6535-70-2
Chemical Name: 2-Amino-5-naphthol-1,7-disulphonic acid
Empirical Formula: C10H9NO7S2
Molecular Weight: 319 g/mol
Form Supplied: Moist / Dry

Sulpho OAVS

Product Name: Sulpho OAVS
CAS No: 121-88-0
Chemical Name: Sulpho Ortho Anisidine Vinyl Sulphone
Empirical Formula: C9H13NO10S3
Molecular Weight: 391 g/mol
Form Supplied: Moist / Dry

Sulfo Para Vinyl Sulphone (SPVS)

Product Name: Sulfo Para Vinyl Sulphone (SPVS)
CAS No: 42986-22-1
Chemical Name: Aniline-4-Beta-Ethyl Sulfonyl Sulfate-2-Sulfonic Acid
Empirical Formula: C8H11NO9S3
Molecular Weight: 361.37 g/mol
Form Supplied: Moist Cake

Para Cresidine Ortho Sulphonic Acid

Product Name: Para Cresidine Ortho Sulphonic Acid
CAS No: 6471-78-9
Chemical Name: 4-Amino-5-methoxy-2-methylbenzenesulfonic acid
Empirical Formula: C8H13NO4S
Molecular Weight: 217 g/mol
Form Supplied: Moist

Para Amino Benzoic Acid (PABA)

Product Name: Para Amino Benzoic Acid (PABA)
CAS No: 150-13-0
Chemical Name: 4-Aminobenzoic Acid
Empirical Formula: C7H7NO2
Molecular Weight: 137.14 g/mol
Form Supplied: Dry Powder

Para Nitro Benzoic Acid (PNBA)

Product Name: Para Nitro Benzoic Acid (PNBA)
CAS No: 62-23-7
Chemical Name: 4-Nitrobenzoic Acid
Empirical Formula: C7H5NO4
Molecular Weight: 167.12 g/mol
Form Supplied: Dry Powder

Para Nitro Aniline Ortho Sulphonic Acid (PNAOSA)

Product Name: PNAOSA
CAS No: 30693-53-9
Chemical Name: 2-Amino-5-nitrobenzenesulfonic acid sodium salt
Empirical Formula: C6H5N2O5S.Na
Molecular Weight: 239.98 g/mol
Form Supplied: Dry Powder

ONAPSA

Product Name: ONAPSA
CAS No: 82324-60-5
Chemical Name: 2-Nitro Aniline-4-Sulfonic Acid
Empirical Formula: C6H6N2O5S
Molecular Weight: 218 g/mol
Form Supplied: Dry Powder

PPDDSA

Product Name: Para Phenylenediamine 2,5 Disulfonic Acid (PPDDSA)
CAS No: 7139-89-1
Chemical Name: 2,5-Diamino Benzene-1,4-Disulfonic Acid
Empirical Formula: C6H8O6N2S2
Molecular Weight: 268.27 g/mol
Form Supplied: Dry Powder

Para Chloro Benzene Sulfonic Acid

Product Name: Para Chloro Benzene Sulfonic Acid
CAS No: 98-66-8
Chemical Name: 4-Chloro Benzene Sulfonic Acid
Empirical Formula: C6H5O3SCl
Molecular Weight: 192.62 g/mol
Form Supplied: Powder

PA2SA

Product Name: Para Anisidine 2 Sulfonic Acid (PA2SA)
CAS No: 6470-17-3
Chemical Name: 1-Methoxy-4-Aminobenzene-2-Sulfonic Acid
Empirical Formula: C7H9NO4S
Molecular Weight: 203 g/mol
Form Supplied: Moist Powder

PTDSA

Product Name: Para Toluidine 2,5 Disulfonic Acid (PTDSA)
CAS No: 26585-57-9
Chemical Name: 4-Methylaniline-2,5-Disulphonic Acid
Empirical Formula: C7H9NO6S2
Molecular Weight: 267 g/mol
Form Supplied: Moist Powder

Ortho Anisidine-4-Sulfonic Acid

Product Name: Ortho Anisidine-4-Sulfonic Acid
CAS No: 98-42-0
Chemical Name: 2-Methoxy Aniline-5-Sulfonic Acid
Empirical Formula: C7H9NO4S
Molecular Weight: 203 g/mol
Form Supplied: Moist Powder

2B Acid

Product Name: 2B Acid
CAS No: 88-51-7
Chemical Name: 2-Chloro-4-aminotoluene-5-sulfonic acid
Empirical Formula: C7H8ClNO3S
Molecular Weight: 221.5 g/mol
Form Supplied: Moist Powder

Armstrong’s Acid

Product Name: Armstrong’s Acid
CAS No: 81-04-9
Chemical Name: 1,5-Naphthalene Disulfonic Acid
Empirical Formula: C10H8O6S2
Molecular Weight: 288 g/mol
Form Supplied: Moist Powder

4B Acid (PT3SA)

Product Name: 4B Acid (PT3SA)
CAS No: 88-44-8
Chemical Name: 4-Aminotoluene-3-Sulfonic Acid
Empirical Formula: C7H9NO3S
Molecular Weight: 187.22 g/mol
Form Supplied: Dry Powder

BDSA

Product Name: BDSA
Chemical Name: 4,4′-Biphenyl Diamino-2,2′-Disulfonic Acid
CAS No: 117-61-3
Molecular Weight: 344.3 g/mol

4-CAPSA

Product Name: 4-CAPSA
Chemical Name: 4-Chloro-2-Amino Phenol-6-Sulfonic Acid
CAS No: 88-23-3
Molecular Weight: 223.5 g/mol

M-Acid

Product Name: M-Acid
Chemical Name: 3,5-Diamino-2,4,6-Trimethylbenzene Sulphonic Acid
CAS No: 32432-55-6
Molecular Weight: 230 g/mol

MAA-HCL

Product Name: M-Amino Acetanilide HCL (MAA-HCL)
Chemical Name: M-Amino Acetanilide Hydrochloride
CAS No: 621-35-2
Molecular Weight: 186.5 g/mol

PAA

Product Name: P-Amino Acetanilide (PAA)
Chemical Name: P-Amino Acetanilide
CAS No: 122-80-5
Molecular Weight: 150.18 g/mol

6-CAPSA

Product Name: 6-CAPSA
Chemical Name: 6-Chloro-2-Amino Phenol-4-Sulfonic Acid
CAS No: 5857-94-3
Molecular Weight: 223.5 g/mol

PPDSA

Product Name: PPDSA
Chemical Name: 1,4-Diamino-2-Benzenesulfonic Acid
CAS No: 88-45-9
Molecular Weight: 188.22 g/mol

1-Naphthylamine

Product Name: 1-Naphthylamine
Chemical Name: 1-Naphthylamine
CAS No: 134-32-7
Molecular Weight: 143.19 g/mol

6-NAPSA

Product Name: 6-NAPSA
Chemical Name: 6-Nitro-2-Aminophenol-4-Sulfonic Acid
CAS No: 96-93-5
Molecular Weight: 234.18 g/mol

4-ADAPSA

Product Name: 4-ADAPSA
Chemical Name: 4-Aminodiphenylamine-2-Sulfonic Acid (Campaign Base)
CAS No: 91-30-5
Molecular Weight: 264 g/mol

2-NADPSA

Product Name: 2-NADPSA
Chemical Name: 2-Nitro-4′-Amino Diphenylamine-4-Sulfonic Acid (Campaign Base)
CAS No: 135-11-5
Molecular Weight: 309.3 g/mol

4-NADPSA

Product Name: 4-NADPSA
Chemical Name: 4-Nitro, 4′-Amino Diphenylamine-2-Sulfonic Acid (Campaign Base)
CAS No: 91-29-2
Molecular Weight: 309.3 g/mol

OAPSA

Product Name: OAPSA
Chemical Name: 2-Amino Phenol-4-Sulphonic Acid
CAS No: 98-37-3
Molecular Weight: 189.19 g/mol

OAPSAMIDE

Product Name: OAPSAMIDE
Chemical Name: 2-Amino Phenol-4-Sulfonamide
CAS No: 98-32-3
Molecular Weight: 188.2 g/mol

Methyl OAPSAMIDE

Product Name: Methyl OAPSAMIDE
Chemical Name: 2-Amino-N-methyl-1-phenol-4-sulfonamide
CAS No: 80-23-9
Molecular Weight: 202.23 g/mol

Copper Formazon Base

Product Name: Copper Formazon Base
Chemical Name: Copper Formazone of Hydrazone of 4-Sulpho Anthranilic Acid
CAS No: 77840-01-8
Molecular Weight: 596 g/mol

BAS Acid

Product Name: BAS Acid
Chemical Name: 4-Sulfo Anthranilic Acid / 2-Amino-4-Sulfo Benzoic Acid
CAS No: 98-43-1
Molecular Weight: 217 g/mol

Hydrazone of 4-Sulfo Anthranilic Acid

Product Name: Hydrazone of 4-Sulfo Anthranilic Acid
Chemical Name: 2-(2-Benzylidenehydrazino)-4-Sulfo Benzoic Acid
CAS No: 77734-52-2
Molecular Weight: 320 g/mol

Liquid Dyes

#	Product Name	Colour Shade
1	Direct Yellow 6
2	Direct Yellow 11
3	Direct Red 80
4	Direct Red 239
5	Direct Blue 71
6	Direct Orange 15
7	Direct Black 168
8	Basic Yellow 2 Auramine O

Reactive Dyes

#	Product Name	Colour Shade
1	Reactive Yellow 3RS C.I. Reactive Yellow 145
2	Reactive Yellow ME-G4L C.I. Reactive Yellow 160A
3	Reactive Orange ME-2RL C.I. Reactive Orange 122
4	Reactive Red 3BS C.I. Reactive Red 195
5	Reactive Red RB C.I. Reactive Red 198
6	Reactive Blue M-2GE C.I. Reactive Blue 194
7	Reactive Blue BB C.I. Reactive Blue 220
8	Reactive Blue BRF C.I. Reactive Blue 221
9	Reactive Blue FBN C.I. Reactive Blue 222
10	Reactive Yellow K-4G C.I. Reactive Yellow 18
11	Reactive Orange 12 C.I. Reactive Orange 12
12	Reactive Orange P-3R C.I. Reactive Orange 13
13	Reactive Red K-2BP C.I. Reactive Red 24
14	Reactive Yellow HE-4R C.I. Reactive Yellow 84
15	Reactive Yellow HE4G C.I. Reactive Yellow 105
16	Reactive Orange HE-4R C.I. Reactive Orange 84
17	Reactive Red KE-7B C.I. Reactive Red 141
18	Reactive Blue KE-R C.I. Reactive Blue 171
19	Reactive Black B C.I. Reactive Blue 5
20	Reactive Yellow FG C.I. Reactive Yellow 42
21	Reactive Orange KN-2G C.I. Reactive Orange 72
22	Reactive Orange RNL C.I. Reactive Orange 107
23	Reactive Blue KN-R C.I. Reactive Blue 19
24	Reactive Blue G C.I. Reactive Blue 21
25	Reactive Blue RGB C.I. Reactive Blue 250
26	Reactive Black WNN C.I. Reactive Black WNN

Direct Dyes

#	Product Name	Colour Shade
1	Direct Yellow 6
2	Direct Yellow 11
3	Direct Yellow 44
4	Direct Yellow 86
5	Direct Yellow 106
6	Direct Yellow 142
7	Direct Orange 39
8	Direct Red 80
9	Direct Red 239
10	Direct Blue 71
11	Direct Blue 199
12	Direct Green 26
13	Direct Black 168
14	Direct Black 22

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