| Customization: | Available |
|---|---|
| Type: | Pharmaceutical Intermediates |
| Appearance: | Powder |
|
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Suppliers with verified business licenses
Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.
2: What's your MOQ?
A: We can have a discussion.
3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.
4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.
5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.
6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
1. 90days quality guarantee for exchange.
2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.
3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.
| Product Name: | 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT |
| Synonyms: | LABOTEST-BB LT00454615;DISODIUM 1-NITROSO-2-NAPHTHOL-3,6-DISULFONATE;DISODIUM 3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONATE;NITROSO R SALTNITROSO R SALTNITROSO R SALT;3-HYDROXY-4-NITROSO-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT;1-Nitroso-2-naphthol-3,6-disul;1-Nitroso-2-naphthol-3,6-disulfonicacidsodiumsalt;1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT |
| CAS: | 525-05-3 |
| MF: | C10H8NNaO8S2 |
| MW: | 357.28 |
| EINECS: | 208-369-1 |
| Product Categories: | Intermediates of Dyes and Pigments |
| Mol File: | 525-05-3.mol |
| Melting point | >300 °C(lit.) |
| solubility | Slightly soluble in ethanol. |
| form | Crystalline Powder |
| color | Yellow to orange |
| Water Solubility | almost transparency |
| Merck | 14,6644 |
| BRN | 3643930 |
| CAS DataBase Reference | 525-05-3(CAS DataBase Reference) |
| EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-nitroso-, disodium salt (525-05-3) |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22 |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| RTECS | QJ6480000 |
| TSCA | Yes |
| HS Code | 29089990 |
| Chemical Properties | YELLOWISH-ORANGE TO YELLOW-BROWN CRYST. POWDER |
| Uses | 1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is the most sensitive determination of trace cobalt reagents used for determination of cobalt and potassium-sensitive reagents. |
| Uses | As a reagent for cobalt and potassium. |
| Purification Methods | Purify the salt by dissolution in aqueous alkali and precipitation by addition of HCl. The pKa is 7.13. [Oka & Miyamoto J Chem Soc Jpn (Pure Chem Sectn) 76 672 1955 (Chem Abstr 11882 1956I), Beilstein 11 IV 669.] |
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