Advanced Search



Sulfanilic acid azochromotrop

SIGMA/S9256 - ≥80%

Synonym: 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid trisodium salt; 2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid trisodium salt; 2-(4-Sulfophenylazo)chromotropic acid trisodium salt; SPADNS

CAS Number: 23647-14-5
Empirical Formula (Hill Notation): C16H9N2Na3O11S3
Molecular Weight: 570.41
EC Number: 245-803-9
MDL Number: MFCD00003952
Linear Formula: C16H9N2Na3O11S3
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-S9256-10G 10 g
 $65.60
1/EA		 Add To Favorites
45-S9256-25G 25 g
 $142.00
1/EA		 Add To Favorites
45-S9256-50G 50 g
 $265.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S9256-50G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S9256-10G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: S9256-25G

 

λmax 505-510 nm
application(s) diagnostic assay manufacturing
hematology
histology
assay ≥80%
color dark red
composition Carbon: 26.0-35.0%

Nitrogen: 3.6-5.9%
form powder
InChI 1S/C16H12N2O11S3.3Na/c19-12-7-11(31(24,25)26)5-8-6-13(32(27,28)29)15(16(20)14(8)12)18-17-9-1-3-10(4-2-9)30(21,22)23;;;/h1-7,19-20H,(H,21,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3/b18-17+;;;
InChI key AEHGQXKBQBMQEK-GLCFPVLVSA-K
Quality Level 200 
SMILES string [Na+].[Na+].[Na+].Oc1cc(cc2cc(c(N=Nc3ccc(cc3)S([O-])(=O)=O)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
solubility water: 10 mg/mL
storage temp. room temp
technique(s) titration: suitable
Application: Sulfanilic acid azochromotrop, commonly known as SPADNS, is used mostly as an indicator for complexometric determinations of transition metals like zirconium. It is used as a reagent for drinking and wastewater analysis.
General description: Sulfanilic acid azochromotrop is commonly known as SPADNS.
Packaging: 10, 25, 50 g in glass bottle
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Purity ≥80%
Storage Temp. room temp
UNSPSC 12171500

The following items have been added to your cart:

Choose a favorite list for this item:
Catalog Number Description Price
$

Returns/Order support

Please fill out the form below if you want to request order support from Krackeler Scientific.


Quick Order

* Required


New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.

800-334-7725
office@krackeler.com


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Register and login to the website.
  2. Receive a quote from your sales representative or customer service.
  3. Have your copy of the quote in hand.
  4. Visit our quote module to search for your quote.
Back to Top