WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 341184

CAS#: 2538-85-4

Description: Calcon is a biochemical indicator of calcium.

Chemical Structure

CAS# 2538-85-4

Theoretical Analysis

MedKoo Cat#: 341184
Name: Calcon
CAS#: 2538-85-4
Chemical Formula: C20H13N2NaO5S
Exact Mass: 416.0443
Molecular Weight: 416.3828
Elemental Analysis: C, 57.69; H, 3.15; N, 6.73; Na, 5.52; O, 19.21; S, 7.70

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales or click below button.
Note: Price will be listed if it is available in the future.

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Synonym: Calcon; NSC-47714; NSC 47714; NSC47714.

IUPAC/Chemical Name: 1-Naphthalenesulfonic acid, 3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt


InChi Code: InChI=1S/C20H14N2O5S.Na/c23-16-10-9-12-5-1-2-6-13(12)19(16)21-22-20-15-8-4-3-7-14(15)18(11-17(20)24)28(25,26)27;/h1-11,23-24H,(H,25,26,27);/q;+1/p-1/b22-21+;

SMILES Code: c12c(c(cc(c1\N=N\c1c3c(ccc1O)cccc3)O)S(=O)(=O)[O-])cccc2.[Na+]

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 416.3828 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

Molarity Calculator

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Reconstitution Calculator

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Dilution Calculator

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