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ChemicalBook >> CAS DataBase List >> SPADNS

SPADNS

SPADNS price.
  • $23.3 - $1687.13
  • Product name: SPADNS
  • CAS: 23647-14-5
  • MF: C16H13N2NaO11S3
  • MW: 528.45
  • EINECS:245-803-9
  • MDL Number:MFCD00003952
  • Synonyms:4,5-Dihydroxy-3-(4-sulfophenylazo)naphthalene-2,7-disulfonic acid;4,5-Dihydroxy-3-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid;3-[[4-(Sodiooxysulfonyl)phenyl]azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt;Sulfanilic acid azochromtrop;2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid, trisodium salt,indicator;2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid;2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid, trisodiuM salt, indicator grade 10GR;2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic acid, trisodiuM salt, indicator grade 25GR
35 prices
Selected condition:
Brand
  • aablocks
  • AHH
  • American Custom Chemicals Corporation
  • Biosynth
  • Chem-Impex
  • GFS CHEMICALS
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
  • TRC
Package
  • 5g
  • 1079980025
  • 500mg
  • 10G
  • 25g
  • 50g
  • 100g
  • 250g
  • 1000g
  • 1KG
  • Manufactureraablocks
  • Product numberAA002NYC
  • Product descriptionTrisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
  • Packaging5g
  • Price$26
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002NYC
  • Product descriptionTrisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
  • Packaging25g
  • Price$69
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002NYC
  • Product descriptionTrisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
  • Packaging100g
  • Price$256
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002NYC
  • Product descriptionTrisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
  • Packaging250g
  • Price$477
  • Updated2026-05-28
  • Buy
  • ManufacturerAHH
  • Product numberMT-22375
  • Product descriptionSpadns 98%
  • Packaging1000g
  • Price$400
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberING0003419
  • Product descriptionSPADNS 95.00%
  • Packaging10G
  • Price$439.25
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberING0003419
  • Product descriptionSPADNS 95.00%
  • Packaging25G
  • Price$487.5
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFS41120
  • Product descriptionp-Sulfophenylazochromotropic acid trisodium salt
  • Packaging50g
  • Price$518.5
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFS41120
  • Product descriptionp-Sulfophenylazochromotropic acid trisodium salt
  • Packaging100g
  • Price$951
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFS41120
  • Product descriptionp-Sulfophenylazochromotropic acid trisodium salt
  • Packaging10g
  • Price$172.8
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFS41120
  • Product descriptionp-Sulfophenylazochromotropic acid trisodium salt
  • Packaging25g
  • Price$276
  • Updated2026-06-04
  • Buy
  • ManufacturerChem-Impex
  • Product number22803
  • Product descriptionSPADNS,ACSreagent
  • Packaging250G
  • Price$396.03
  • Updated2021-12-16
  • Buy
  • ManufacturerChem-Impex
  • Product number22803
  • Product descriptionSPADNS,ACSreagent
  • Packaging100G
  • Price$198.02
  • Updated2021-12-16
  • Buy
  • ManufacturerChem-Impex
  • Product number22803
  • Product descriptionSPADNS
  • Packaging5G
  • Price$29.34
  • Updated2026-05-19
  • Buy
  • ManufacturerChem-Impex
  • Product number22803
  • Product descriptionSPADNS
  • Packaging25G
  • Price$77.62
  • Updated2026-05-19
  • Buy
  • ManufacturerChem-Impex
  • Product number22803
  • Product descriptionSPADNS,ACSreagent ACSreagent
  • Packaging25G
  • Price$56
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA002NYC Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate 5g $26 2026-05-28 Buy
aablocks AA002NYC Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate 25g $69 2026-05-28 Buy
aablocks AA002NYC Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate 100g $256 2026-05-28 Buy
aablocks AA002NYC Trisodium 2-(p-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate 250g $477 2026-05-28 Buy
AHH MT-22375 Spadns 98% 1000g $400 2021-12-16 Buy
American Custom Chemicals Corporation ING0003419 SPADNS 95.00% 10G $439.25 2021-12-16 Buy
American Custom Chemicals Corporation ING0003419 SPADNS 95.00% 25G $487.5 2021-12-16 Buy
Biosynth FS41120 p-Sulfophenylazochromotropic acid trisodium salt 50g $518.5 2026-06-04 Buy
Biosynth FS41120 p-Sulfophenylazochromotropic acid trisodium salt 100g $951 2026-06-04 Buy
Biosynth FS41120 p-Sulfophenylazochromotropic acid trisodium salt 10g $172.8 2026-06-04 Buy
Biosynth FS41120 p-Sulfophenylazochromotropic acid trisodium salt 25g $276 2026-06-04 Buy
Chem-Impex 22803 SPADNS,ACSreagent 250G $396.03 2021-12-16 Buy
Chem-Impex 22803 SPADNS,ACSreagent 100G $198.02 2021-12-16 Buy
Chem-Impex 22803 SPADNS 5G $29.34 2026-05-19 Buy
Chem-Impex 22803 SPADNS 25G $77.62 2026-05-19 Buy
Chem-Impex 22803 SPADNS,ACSreagent ACSreagent 25G $56 2021-12-16 Buy

Properties

Melting point :>300°C
bulk density :810kg/m3
storage temp. :Store at +15°C to +25°C.
solubility :220g/l
form :Crystalline Powder
color :Dark red-brown
PH :6.0 (10g/l, H2O, 22℃)
Water Solubility :Soluble in water (10 mg/ml), and ethanol (1 mg/ml). very slightly soluble or insoluble in alcohol and organic solvents.
λmax :505-510 nm
Major Application :diagnostic assay manufacturing
hematology
histology InChIKey :AEHGQXKBQBMQEK-GLCFPVLVSA-K
SMILES :[Na+].[Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccc(cc3)S([O-])(=O)=O)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
EPA Substance Registry System :2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, trisodium salt (23647-14-5)

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
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Description

Sulfanilic acid azochromotrop is used as an indicator for complexometric determinations of zirconium and thorium. It is used as a reagent for drinking and wastewater analysis using Hach Method 8029, Fluoride, SPADNS Method.

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