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Congo red, certified, ACS

Synonyms: C.I. Direct Red 28 · Congazone sodium · Benzo Congo Red · Mitsui Congo Red

CAS No.573-58-0
FormulaC32H22N6Na2O6S2
Mol. weight696.70
Catalogue No.VQ-046789
PurityACS
HSN32041421

Congo red, certified (CAS 573-58-0) – biological stain, ACS grade. C32H22N6Na2O6S2, MW 696.7. Supplied by Vaqora Chemicals with COA, exported worldwide.

Pack sizesPrice on quotation · bulk available
10 g
25 g
100 g
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Congo red, certified, ACS

Congo red, certified (CAS 573-58-0) is a biological stain offered by Vaqora Chemicals (ACS grade). Its molecular formula is C32H22N6Na2O6S2 and its molecular weight is 696.7 g/mol. It is also known as C.I. Direct Red 28 or Congazone sodium.

Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and indicator for titrations. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 10 g, 25 g and 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Indicator for titrations

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product nameCongo red, certified, ACS
Catalogue No.VQ-046789
CAS Number573-58-0
IUPAC namedisodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
Molecular formulaC32H22N6Na2O6S2
Molecular weight696.7 g/mol
Exact mass696.0838
GradeACS
HSN code32041421
InChIKeyIQFVPQOLBLOTPF-UHFFFAOYSA-L
SMILESC1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID11313
Physical properties
Physical formOther
H-bond donors / acceptors2 / 12
TPSA233 Ų
SynonymsC.I. Direct Red 28, Congazone sodium, Benzo Congo Red, Mitsui Congo Red, Cotton Red L, Haemomedical, Hemorrhagyl, Hispamin Congo 4B, Brasilamina congo 4B, Sugai Congo Red, Atul Congo Red, Vondacel Red CL

Documents

Other grades of CAS 573-58-0

Frequently asked questions

What is the CAS number of Congo red, certified, ACS?

The CAS Registry Number of Congo red, certified, ACS is 573-58-0. It is also known as C.I. Direct Red 28, Congazone sodium, Benzo Congo Red.

What is the molecular formula and molecular weight of Congo red, certified, ACS?

Congo red, certified, ACS has the molecular formula C32H22N6Na2O6S2 and a molecular weight of 696.7 g/mol.

Which grade and pack sizes of Congo red, certified, ACS can I order?

We supply Congo red, certified, ACS in ACS grade, in 10 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Congo red, certified, ACS?

Yes. Every lot of Congo red, certified, ACS is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Congo red, certified, ACS be shipped internationally?

Yes. We export Congo red, certified, ACS worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.

Enquire about Congo red, certified, ACS

We reply within one business day with price, pack options, lead time and documentation.

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
How ordering works

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