Naphthalene-2-sulfonic acid paramete
|Place of Origin:
||White crystal, White crystal
||1kg/bag,25kg/bag or as your requirements
1.Used as biochemical and experimental reagents
2.Determination of peptone and protein. Dehydrogenation catalyst. For the production of 2-naphthol; 2-naphthol sulfonic acid; Dye intermediates such as 2- naphthylamine sulfonic acid. The product and formaldehyde condensation can be prepared diffusion agent N (diffusion agent NNO).
Appearance & Physical State White powder
Boiling Point 208ºC
Melting Point 34-39ºC
Flash Point 100ºC
Refractive Index 1.4457 (20ºC)
Water Solubility slightly soluble
H302 (49.48%): Harmful if swallowed [Warning Acute toxicity, oral]
H314 (99.65%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H318 (83.28%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H351 (10.1%): Suspected of causing cancer [Warning Carcinogenicity]
H411 (10.1%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
1. Certificate Of Analysis (COA)
2. Material Safety Data Sheet (MSDS)
3. Route of synthesis (ROS)
4. Method of Aanlysis (MOA)
5. Nuclear Magnetic Resonance (NMR)
6. Packing pictures and loading video before loading
7. Free Sample
8. Factory audit
* Prompt reply and 24 hours online, professional team to provide best price and high quality product.
* Every batch of products will be tested to ensureits quality.
* Sample testing support.
*The packing also can be according the customers` requirment.
*Any inquiries will be replied within 24 hours.
*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
* Any questions about the product can be consulted at any time.
*The fact of logistics information monitoring.
*Product has any problem can return.
* The series of natural extracted product are all self-developed, produced and tested. Mature production technology, strict cost control, and perfect quality assurance system, ensure the product stability and competitive price.
* We have clients throughout the world.
* Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire.
* Market feedback and goods feedback are appreciated, meeting customers's requirement is our responsibility.
* High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers.
Secure and discreet shipment. You have various choices of transportation methods.
1. ≤50kg, Express delivery recommended, usually called as DDU service;
2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
4. For high value products, please select air shipping and express delivery for safe.
Q1: Do you accept sample order?
A: We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
Q2: What information should I let you know if I want to get a quotation
A : Quality you require, eg. Assay, Purity, or single impurity
-Quantity you need
-Standard you want, such as USP, EP, JP etc.
Q3: What’s your MOQ?
A : Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
Q5: What is our advantage?
A : The series of natural extracted product are all self-developed, produced and tested. Mature production technology, strict cost control, and perfect quality assurance system, ensure the product stability and competitive price.
Q6: When will you deliver the goods
A : For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
Q7: How to confirm the Product Quality before placing orders?
A : You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.