—— Product Specifications ——

—— Product Detail ——

• • • • • • • • • • • • • • • • • • • • • • • Product Overview

                                              Triisopropyl borate is a borate ester with the molecular formula C₉H₂₁BO₃ and a molecular weight of 188.07 g/mol. This colorless to pale yellow clear liquid is a valuable reagent in organic synthesis, particularly for the preparation of organoborane compounds and as a precursor for Suzuki-Miyaura cross-coupling reactions. The compound features three isopropoxy groups attached to a central boron atom, making it a convenient source of the boronic ester functionality.

                                              The compound is widely used in the synthesis of aryl- and alkenylboronic acids and esters, which are essential components in palladium-catalyzed cross-coupling reactions for the formation of carbon-carbon bonds. Its high purity and consistent quality ensure reproducible results in research and production-scale syntheses.

                                              Synthetic Process

                                              Triisopropyl borate is manufactured through the following routes:

                                              • Esterification of boric acid with isopropanol: Boric acid is reacted with isopropanol in the presence of a catalyst (such as sulfuric acid) or under azeotropic distillation conditions to remove water and drive the reaction to completion.

                                              • Purification: The crude product is purified by distillation under reduced pressure to remove residual isopropanol and other impurities.

                                              Mechanism of Action / Application Principles

                                              • Organoborane Precursor: Serves as a key precursor for the synthesis of organoboranes via transesterification or reaction with organometallic reagents.

                                              • Suzuki-Miyaura Coupling: The borate ester is used as a boron source for the preparation of boronic acids and esters, which are essential partners in Suzuki-Miyaura cross-coupling reactions.

                                              • Organic Synthesis: Used as a reagent in various organic transformations, including reductions and hydroboration reactions.

                                              Quality Specifications

                                              
                                              

                                              
                                              

                                              Parameter	Specification
                                              Assay	≥98.0%
                                              Appearance	Colorless to pale yellow clear liquid
                                              Density (20°C)	0.815 - 0.820 g/ml
                                              Refractive Index (n²⁰/D)	1.395 - 1.399
                                              Boiling Point	137 - 140°C
                                              Water Content	≤0.5%

                                              Each batch is accompanied by a Certificate of Analysis (COA).

                                              Packaging & Storage

                                              • Research quantities: 25ml, 100ml amber glass bottles

                                              • Bulk quantities: 500ml, 1L amber glass bottles

                                              Storage conditions: Store in a cool, dry place in tightly sealed containers, protected from moisture. Under recommended conditions, shelf life is 24 months.

                                              
                                              

— C ompany Profile ——

Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

To date, our products have been exported to developed countries such as the United States, Australia, Canada, Mexico, as well as EU member states including France, Germany, and many other countries and regions such as Nigeria, Ghana, Southeast Asia, and other parts of Asia. Our product quality and services have consistently received high praise.

Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.

—— Q&A ——

Q1: How to confirm the product quality before placing orders?
A: By sending you available samples. Or if you have special requirements for the goods, we can prepare samples according to your requirements for confirmation.

Q2: Can you supply free samples?
A: Yes, we can provide a free sample, but the shipping cost will be paid by the customers. You can either pay the shipping cost or arrange a courier to collect the samples.

Q3: How do you treat quality complaints?
A: All our products are strictly tested by our QC and confirmed by QA; unqualified material will not be released to customers. If any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.

Q4: What is your MOQ? Is there a discount?
A: For highvalue products, our MOQ starts from 1g and generally starts from 10g. For other lowprice products, our MOQ starts from 100g and 1kg.
Q: Is there a discount?
A: Yes, for larger quantities, we always support with better prices.

Q5: How to start orders or make payments?
A: You can send us your Purchase Order (if your company has one), or just send a simple confirmation by email or via Trade Manager. We will then send you a Proforma Invoice with our bank details for your confirmation, and you can make payment accordingly. If you have other preferred payment methods, we are open to discussion and negotiation.