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Published TCIMAIL newest issue No.198
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CAS RN: 846-70-8 | Product Number: F0100
Naphthol Yellow S
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Purity: >98.0%(T)(HPLC)
Synonyms:
- 2,4-Dinitro-1-naphthol-7-sulfonic Acid Disodium Salt
- Disodium 2,4-Dinitro-1-naphthol-7-sulfonate
- Disodium 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonate
- 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonic Acid Disodium Salt
- Flavianic Acid Disodium Salt
- Acid Yellow 1
Product Documents:
| Size | Unit Price | Belgium | Japan* | Quantity |
|---|---|---|---|---|
| 25G |
€97.00
|
1 | 36 |
|
*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).
Supplemental Product Information:
Previously this product had been labeled as a hydrate form both in product name and molecular formula. The hydrate form had no exclusive CAS RN and used to share the same CAS RN as the anhydrous form.
To avoid any misleading information and since moisture in product is considered as an impurity, we have decided to remove the term 'Hydrate' from product name and 'xH2O' from the molecular formula for such products.
Please use it at ease since there is no difference in product quality, even if you see the previous indications on a part of label.
| Product Number | F0100 |
| Purity / Analysis Method | >98.0%(T)(HPLC) |
| Molecular Formula / Molecular Weight | C__1__0H__4N__2Na__2O__8S = 358.19 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 846-70-8 |
| Reaxys Registry Number | 3839220 |
| PubChem Substance ID | 87569899 |
| Merck Index (14) | 6393 |
| Colour Index | 10316 |
| MDL Number | MFCD00003958 |
Specifications
| Appearance | Light yellow to Brown powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Nonaqueous Titration) | min. 98.0 %(calcd.on anh.substance) |
| Lambda max. | 427.0 to 431.0 nm(H2O) |
| Lambda max.2 | 390.0 to 394.0 nm(H2O) |
| Absorbance(E1%1cm) | min. 430(H2O, 427.0 to 431.0 nm) |
| Absorbance(E1%1cm)2 | min. 420(H2O, 390.0 to 394.0 nm) |
| Water | max. 8.0 % |
Properties (reference)
| Maximum Absorption Wavelength | 429 nm (H__2O) |
| Solubility in water | Soluble |
| Solubility (miscible with) | Sulphuric acid |
| Solubility (slightly sol. in) | Ethanol |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H317 : May cause an allergic skin reaction. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust. P272 : Contaminated work clothing should not be allowed out of the workplace. P280 : Wear protective gloves. P362 + P364 : Take off contaminated clothing and wash it before reuse. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. |
Related Laws:
| EC Number | 212-690-2 |
| RTECS# | QK1813000 |
Transport Information:
| HS Number | 3204120090 |
PubMed Literature
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