Calconcarboxylic acid
Also known as: Calcon-carboxylic acid, Cal-Red, Patton and Reeder's indicator, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid, 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid, HHSNN, HHSNNA, 2,2'-dihydroxy-4'-sulfo-1,1'-azonaphthalene-3-carboxylic acid, 3-Hydroxy-4-[(E)-(2-hydroxy-4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2-carboxylic acid
Calconcarboxylic acid (CAS 3737-95-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H14N2O7S and a molecular weight of 438.410 g/mol. Key properties include a melting point of 300 °C(lit.) and a density of 1.6±0.1 g/cm3. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 3737-95-9
- Jingsj CID
- J-32878-8
- Molecular Formula
- C21H14N2O7S
- Molecular Weight
- 438.410 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 300 °C(lit.) |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Exact Mass | 438.052185 |
| PSA | 165.23000 |
| LogP | 2.86 |
| Refractive Index | 1.734 |
| Additional Property | slightly soluble |
Activity & Biological Data
| Additional Information | [1]. Jin LT, et al. Sensitive silver staining of protein in sodium dodecyl sulfate-polyacrylamide gels using an azo dye, calconcarboxylic acid, as a silver-ion sensitizer. Electrophoresis. 2004 Aug;25(15):2494-500. [2]. Hong HY, et al. Detection of proteins on polyacrylamide gels using calconcarboxylic acid. Anal Biochem. 1993 Oct;214(1):96-9. |
|---|
Customs & Trade Information
| HS Code | 2927000090 |
|---|---|
| Summary | 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Calconcarboxylic acid?
The CAS number of Calconcarboxylic acid is 3737-95-9.
What are the molecular formula and molecular weight of Calconcarboxylic acid?
Calconcarboxylic acid has molecular formula C21H14N2O7S and molecular weight 438.410 g/mol.
Which suppliers offer Calconcarboxylic acid?
1 supplier(s) listed; request a quote for pricing.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Calconcarboxylic acid (CAS 3737-95-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32878-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.