Specifications
- Purity
- ≥97% (NMR)
- Appearance
- Beige powder
- Identity
- 1H-NMR
Properties
- Solvents
- water, DMSO
- Melting Point
- >300 °C - lit
Documentation
- Safety Data Sheet (SDS)
- CDX C0231 SDS_V1.3_DE.pdf
Available from stock
Chromotropic acid disodium salt dihydrate
- SKU
- C0231
Category: Non Fluorescent Detection & Chromogene Detection
- Synonyms
- 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt , 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt , Mordant Brown 7 Dihydrate , Chromogen C Dihydrate
- 5808-22-0
- CAS-Number
- C10H6Na2O8S2 · 2H2O
- Molecular Formula
- 400.29
- Molecular Weight
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
- Shipping
- AMBIENT
- Short Term Storage
- RT
- Long Term Storage
- RT
- Handling Advice
- Protect from light and moisture.
- Use / Stability
- Stable for at least 2 years after receipt when stored at RT.
- Hazard statements
- H315 - H319 - H335
- Precautionary statements
- P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
- GHS Symbol
- GHS07
- Signal word
- Warning
- Transportation
- Not dangerous goods
- Description
- Fluorogenic reagent for analytical the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti or CH2O (formaldehyde). Quantitative determination of formaldehyde is based on the specific formation of a red coloration (peaking at 580 nm wavelength) when chromotropic acid in 75% sulfuric acid reacts with formaldehyde. May be employed as a chromogenic reagent for the quantification of dipyrone in various pharmaceutical preparations.
- Smiles
- OC1=C(C(O)=CC(S(=O)([O-])=O)=C2)C2=CC(S(=O)([O-])=O)=C1.O.O.[Na+].[Na+]
- InChi Key
- QUEAKWJKJBFNEG-UHFFFAOYSA-L
- References
- (1) D. Letourneau & N. Krog , Plant Physiol. 27, 822 (1952) , (2) H.B. He, et al. , Talanta 38, 1159 (1991) , (3) B.-L. Poh, et al. , Tetrahedr. Lett. 30, 1005 (1989) , (4) B.K. Pal & K. Baksi , Mikrochim. Acta 108, 275 (1992) , (5) Z. Zhao, et al. , Microchem. J. 58, 1 (1998) , (6) L. Pezza, et al. , Anal. Sci. 16, 313 (2000) , (7) F. Gasparini, et al. , J. Braz. Chem. Soc. 19, 1531 (2008)
- InChi
- InChI=1S/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8 , /h1-4,11-12H,(H,13,14,15)(H,16,17,18) , 2*1H2/q , 2*+1 , /p-2
Fluorogenic reagent for analytical the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti or CH2O (formaldehyde). Quantitative determination of formaldehyde is based on the specific formation of a red coloration (peaking at 580 nm wavelength) when chromotropic acid in 75% sulfuric acid reacts with formaldehyde. May be employed as a chromogenic reagent for the quantification of dipyrone in various pharmaceutical preparations.
Additional information
| Synonyms | 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Mordant Brown 7 Dihydrate, Chromogen C Dihydrate |
|---|---|
| Purity | ≥97% (NMR) |
| Appearance | Beige powder |
| CAS-Number | 5808-22-0 |
| Molecular Formula | C10H6Na2O8S2 · 2H2O |
| Molecular Weight | 400.29 |
| Identity | 1H-NMR |
| Solvents | water, DMSO |
| Melting Point | >300 °C – lit |
| Smiles | OC1=C(C(O)=CC(S(=O)([O-])=O)=C2)C2=CC(S(=O)([O-])=O)=C1.O.O.[Na+].[Na+] |
| InChi Key | QUEAKWJKJBFNEG-UHFFFAOYSA-L |
| Shipping | AMBIENT |
| Short Term Storage | RT |
| Long Term Storage | RT |
| Handling Advice | Protect from light and moisture. |
| Use / Stability | Stable for at least 2 years after receipt when stored at RT. |
| Hazard statements | H315 – H319 – H335 |
| Precautionary statements | P261 – P264 – P271 – P280 – P302 + P352 – P305 + P351 + P338 |
| GHS Symbol | GHS07 |
| Signal word | Warning |
| Transportation | Not dangerous goods |
| References | (1) D. Letourneau & N. Krog, Plant Physiol. 27, 822 (1952), (2) H.B. He, et al., Talanta 38, 1159 (1991), (3) B.-L. Poh, et al., Tetrahedr. Lett. 30, 1005 (1989), (4) B.K. Pal & K. Baksi, Mikrochim. Acta 108, 275 (1992), (5) Z. Zhao, et al., Microchem. J. 58, 1 (1998), (6) L. Pezza, et al., Anal. Sci. 16, 313 (2000), (7) F. Gasparini, et al., J. Braz. Chem. Soc. 19, 1531 (2008) |
| InChi | InChI=1S/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8, /h1-4,11-12H,(H,13,14,15)(H,16,17,18), 2*1H2/q, 2*+1, /p-2 |
| Quantity | 50 g, 250 g, Bulk |
