| Customization: | Available |
|---|---|
| CAS No.: | 643-79-8 |
| Formula: | C8h6o2 |
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o-Phthalaldehyde can be widely used for precolumn derivatization of amino acids in HPLC separation or Capillary electrophoresis. For flow cytometric measurements of protein thiol groups.
o-Phthalaldehyde can be used for precolumn derivatization of amino acids for HPLC separation and for flow cytometric measurements of protein thiol groups.
Precolumn derivatization reagent for primary amines and amino acids. The fluorescent derivative can be detected by reverse-phase HPLC. The reaction requires OPA, primary amine and a sulfhydryl. In the presence of excess sulfhydryl, amines can be quantitated. In the presence of excess amine, sulfhydryls can be quantitated.
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Analysis
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Specification
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Result
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Appearance
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Yellow crystalline
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Yellow or light Yellow crystalline
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Melting
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54-56ºC
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54.8-55.7ºC
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Content
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≥99%(GC)
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99.5%
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Moisture
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≤0.5%
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0.21%
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Calecium content
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16.4-17.5%
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17.3%
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Chioridum
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≤0.05%
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<0.05%
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Calcium acetylacetonate
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≥95%
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98.0%
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Conclusion
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Complies with the standards.
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Shandong Boyu Co., Ltd. is located in Shandong Province, China. We specialize in the production and trade of organic intermediates, food additives, daily chemicals, etc.
Our products are exported to more than 100 countries overseas, and we have established close and stable cooperative relationships with more than 200 countries. 80% of them are exported to Europe and the United States, and 20% are exported to Southeast Asia, the Middle East, South Africa and other regions. Due to excellent quality and after-sales service, our company has won a good reputation at home and abroad and is highly praised by customers.
"Quality first, customer first" is our tenet.
Sincerely looking forward to establishing long-term and mutually beneficial business relationships with customers around the world.
1. DO YOU ACCEPT SAMPLE ORDER?
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.
2. IS THERE A DISCOUNT?
Different quantity has different discount.
3. HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
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.
4. WHAT'S YOUR MOQ?
Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
5.DO YOU SUPPLY PRODUCT REPORT?
Yes. We'll give you product analysis report before shipping.
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