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ChemicalBook >> CAS DataBase List >> CHROMOTROPE 2R

CHROMOTROPE 2R

CHROMOTROPE 2R price.
  • $10 - $1103.12
  • Product name: CHROMOTROPE 2R
  • CAS: 4197-07-3
  • MF: C16H10N2Na2O8S2
  • MW: 468.37
  • EINECS:224-085-0
  • MDL Number:MFCD00003955
  • Synonyms:Chromotrope 2R, pure;2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-(phenylazo)-, disodium salt;2-(Phenylazo)chromotropic acid disodium salt, Acid Red29;C.I.Mordant Blue 80;Chromotrope N-2R;Chromotrop 2 R, C.I. 16570, for complexometry;Acid phloxin GR;Benzeneazo-1,8-dihydroxynaphthalene-3,6-disulfonic acid sodiuM salt
Price46 Properties Safety Information Description
46 prices
Selected condition：
Brand
  • aablocks
  • AHH
  • AK Scientific
  • American Custom Chemicals Corporation
  • Arctom
  • Biosynth
  • Chem-Impex
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
Package
  • 500mg
  • 1g
  • 5g
  • 10G
  • 25g
  • 50g
  • 100g
  • 250g
  • 500g
  • 1kg
  • 5000g
  • 25 g
  • 100 g
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate
  • Packaging1g
  • Price$10
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate
  • Packaging5g
  • Price$22
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate
  • Packaging25g
  • Price$28
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry)
  • Packaging100g
  • Price$111
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry)
  • Packaging250g
  • Price$196
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003OTK
  • Product descriptionSodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry)
  • Packaging1kg
  • Price$641
  • Updated2026-05-28
  • Buy
  • ManufacturerAHH
  • Product numberMT-06735
  • Product descriptionChromotrope 2R 99%
  • Packaging5000g
  • Price$347
  • Updated2021-12-16
  • Buy
  • ManufacturerAHH
  • Product numberMT-06735
  • Product descriptionChromotrope 2R 97%
  • Packaging5000g
  • Price$347
  • Updated2026-05-25
  • Buy
  • ManufacturerAHH
  • Product numberMT-06735
  • Product descriptionChromotrope 2R 97%
  • Packaging5000g
  • Price$347
  • Updated2026-05-26
  • Buy
  • ManufacturerAK Scientific
  • Product number6310AF
  • Product descriptionChromotrope 2R
  • Packaging1g
  • Price$14
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product number6310AF
  • Product descriptionChromotrope 2R
  • Packaging25g
  • Price$78
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberDYE0000255
  • Product descriptionCHROMOTROPE 2R 95.00%
  • Packaging10G
  • Price$1103.12
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS547205
  • Product descriptionSodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98%
  • Packaging25g
  • Price$43
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS547205
  • Product descriptionSodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98%
  • Packaging5g
  • Price$17
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS547205
  • Product descriptionSodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98%
  • Packaging100g
  • Price$146
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberHY-W133997
  • Product descriptionChromotrope 2R
  • Packaging25g
  • Price$154
  • Updated2026-05-26
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 1g $10 2026-05-28 Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 5g $22 2026-05-28 Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 25g $28 2026-05-28 Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry) 100g $111 2026-05-28 Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry) 250g $196 2026-05-28 Buy
aablocks AA003OTK Sodium 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate ≥77%(Dyecontent:Spectrophotometry) 1kg $641 2026-05-28 Buy
AHH MT-06735 Chromotrope 2R 99% 5000g $347 2021-12-16 Buy
AHH MT-06735 Chromotrope 2R 97% 5000g $347 2026-05-25 Buy
AHH MT-06735 Chromotrope 2R 97% 5000g $347 2026-05-26 Buy
AK Scientific 6310AF Chromotrope 2R 1g $14 2021-12-16 Buy
AK Scientific 6310AF Chromotrope 2R 25g $78 2021-12-16 Buy
American Custom Chemicals Corporation DYE0000255 CHROMOTROPE 2R 95.00% 10G $1103.12 2021-12-16 Buy
Arctom AS547205 Sodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98% 25g $43 2021-12-16 Buy
Arctom AS547205 Sodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98% 5g $17 2021-12-16 Buy
Arctom AS547205 Sodium4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate 98% 100g $146 2021-12-16 Buy
Arctom HY-W133997 Chromotrope 2R 25g $154 2026-05-26 Buy
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Properties

storage temp. :Store at RT.
solubility :H2O: 1 mg/mL, dark red
form :Crystalline Powder
Colour Index :16570
color :Reddish-brown
Water Solubility :Soluble in water (1 mg/ml).
Stability :Stable. Incompatible with strong oxidizing agents.
Major Application :diagnostic assay manufacturing
hematology
histology InChIKey :GXEAXHYQKZAJGB-QIKYXUGXSA-L
SMILES :[Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Description

Employed as an indicator for complexometry. It is also applied as a stain used in modified Gomori Trichrome stain. Used as a stain for cytology.

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Suppliers and manufacturers

Shaanxi Dideu Medichem Co. Ltd
Chromotrope2R
$1.00 /1KG
Chromotrope2R CAS:4197-07-3
career henan chemical co
CHROMOTROPE 2R
$1.00 /1KG
CHROMOTROPE 2R CAS:4197-07-3
CONIER CHEM AND PHARMA LIMITED
Hubei Ipure Biology Co., Ltd
Hefei TNJ Chemical Industry Co.,Ltd.
HONG KONG IPURE BIOLOGY CO.,LIMITED
ANHUI WITOP BIOTECH CO., LTD
CD Chemical Group Limited
ZHEJIANG JIUZHOU CHEM CO., LTD
Aladdin Scientific