RING - 4833 ads

Thursday, March 26, 2026

Qingdao Agrishade Mesh Co., Ltd. offers premium Custom Waterproof Sun Shade Sail solutions designed to provide superior outdoor protection and comfort. Crafted from high-quality waterproof materials, these shade sails effectively block harmful UV rays while preventing rain , making...

Saturday, January 31, 2026

The Triangle Sun Shade Sail from Qingdao Agrishade Mesh Co., Ltd. is a modern and effective solution for creating comfortable shaded outdoor spaces. Designed for patios, gardens, balconies, pools, and commercial areas, this shade sail offers reliable sun protection while enhancing...

Friday, January 23, 2026

MagneHealth offers thoughtfully designed magnetic wellness accessories that blend style with purpose. Discover a premium range of Bracelets, Necklaces, Anklets, and Rings crafted for everyday comfort and balance. Each piece combines modern design with magnetic technology, making MagneHealth...

Sunday, January 11, 2026

We are a Chinese manufacturer, which mainly supply large customized spare parts for mining equipment (e.g. ball mill gear, pinion, crusher bowl liner, cement spare parts, support roller, kiln tyre ring etc). Ball mill gear ring Ball mill girth gear Cement mill gear ring Mining ball...

Friday, September 26, 2025

This Low Emission Graphite Packing Set is specifically designed to deliver reliable sealing performance in gate valves, fully compliant with ISO 15848-1 and API 622 standards. Crafted from high-purity graphite (≥99%), the set consists of five precision-formed rings with dimensions...

Tuesday, September 02, 2025

Liyond offers a comprehensive range of vacuum circuit breaker contacts, which are essential components for ensuring a reliable and efficient conductive path within medium and high-voltage power systems. These circuit breaker contacts are designed for robust performance and a long service life...

Tuesday, September 02, 2025

Tulip contacts are crucial components in medium- and high-voltage vacuum circuit breakers (VCBs). They are designed to provide a reliable and efficient conductive path to handle the high currents and voltages found in power systems. Their design ensures low resistance and a secure...

Friday, August 22, 2025

Quantity : 1kg; 25kg;

Potassium tert-butoxide, as a strong alkaline, is widely used in the condensation, rearrangement and ring opening reaction in organic production in the fields of chemical, pharmaceutical and pesticide. It can also be used: To synthesize aliphatic and aromatic amides from corresponding...

Friday, August 22, 2025

Quantity : 1kg; 25kg;

Sodium tert-butoxide is used as a strong base and a non-nucleophilic base. In organic synthesis, it serves as an intermediate in various reactions like condensation, rearrangement and ring-opening. Further, it finds use in agrochemicals, pharmaceuticals, colorants, aroma chemicals...

Wednesday, August 20, 2025

Quantity : 1kg; 25kg;

It is used to produce 2,4-dichlorobenzaldehyde-2-sulfonic acid, which is an important intermediate for the synthesis of dyes such as Reactive Blue K-FGR and Acid Lake Blue A. It is a key intermediate in the synthesis of the fungicide triadimefon, a new type of pesticide that can replace...

Wednesday, August 13, 2025

Quantity : 1kg; 25kg;

Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins. Trimethyl Orthoformate is the most simple orthoester. Used in organic...

Tuesday, August 12, 2025

Quantity : 1kg; 25kg;

Vitamin D is steroid derivatives. It is the general term for the compounds that have similar structures and have the effect of normal skeletal growth and maintenance. At present, there are at least more than ten kinds of sterols that have vitamin D activity. But there are only two...

Saturday, August 02, 2025

Quantity : 28 tons pe - Price : under on request

Our Company is one of the good manufacturer and exporter of hardwoods and wood products made from hardwoods and softwoods in South America. Our Company produces and exports products made from Brazilian green sandalwood (a precious and noble wood), using the most modern processes of...

Saturday, August 02, 2025

Quantity : 1kg; 25kg;

Benzene is one of the most important basic organic chemical raw materials. Benzene can be derived into many important chemical intermediates through substitution reaction, addition reaction and benzene ring rupture reaction. It is an important basic raw material for the production...

Saturday, August 02, 2025

Quantity : 1kg; 25kg;

3-Benzhydrylquinuclidine-3-one is primarily used as an intermediate in the synthesis of various organic compounds and pharmaceuticals. It is particularly useful in the preparation of complex molecules due to its structural features, which include a quinuclidine ring and a benzhydryl group...

Wednesday, July 30, 2025

Quantity : 1kg; 25kg;

Melamine, a triazine compound with the formula C3H6N6, is an organic base known for its applications in industrial chemistry and materials science. The molecule is composed of a 1,3,5-triazine ring with three amine groups attached, conferring it high nitrogen content and exceptional...

Tuesday, July 29, 2025

Quantity : 1kg; 25kg;

Phenothiazine is an organic compound with a unique structure that consists of a sulfur atom and two nitrogen atoms incorporated into a three-ring system. This compound has been the subject of significant research since its discovery in the late 19th century. Initially synthesized...

Saturday, July 26, 2025

Quantity : 1kg; 25kg;

3,8-Dihydroxy-6H-dibenzo[b,d]pyran-6-one , commonly referred to as emodin, is a naturally occurring anthraquinone derivative found in various plant species, including rhubarb, buckthorn, and senna. Its distinctive structure, consisting of a fused dibenzo[b,d]pyranone ring system with...

Saturday, July 26, 2025

Quantity : 1kg; 25kg;

Triphosphopyridine nucleotide disodium salt is a compound that plays a crucial role in the field of biochemistry, especially in processes related to cellular energy transfer and metabolic pathways. It is a derivative of pyridine nucleotide and has three phosphate groups attached to...

Friday, July 25, 2025

Potassium tert-butoxide is a white to off-white liquid, which is widely used as a strong base in the reactions of condensation, rearrangement and ring-opening in the organic synthesis of chemicals, pharmaceuticals and pesticides. It is used in pesticides, pharmaceuticals, printing and dyeing...

Friday, July 25, 2025

Quantity : 1kg; 25kg;

1-(3,5-Dichloro-4-fluorophenyl)-2,2,2-tr ifluoro-ethanone is a chemical compound of interest due to its unique structure and potential applications in various fields of organic synthesis and materials science. This compound consists of a trifluoroethanone group attached to a phenyl...

Friday, July 25, 2025

Quantity : 1kg; 25kg;

1,3-Benzodioxole-5-ethanamine, also known as 5-ethoxy-1,3-benzodioxole, is a chemical compound belonging to the class of substituted phenethylamines. It features a benzodioxole ring structure with an ethylamine group attached at the 5-position of the ring. This molecule is structurally...

Tuesday, July 22, 2025

Quantity : 1kg; 25kg;

Anisole, also known as anisole, methoxybenzene, and methyl phenyl ether, is a colorless liquid with the smell of anise and a sweet taste. It is naturally present in tarragon essential oil. It is insoluble in water, soluble in ethanol, ether, acetone, and easily soluble in benzene...

Thursday, July 17, 2025

Quantity : 1kg; 25kg;

Potassium tert-butoxide is a white to off-white liquid, which is widely used as a strong base in the reactions of condensation, rearrangement and ring-opening in the organic synthesis of chemicals, pharmaceuticals and pesticides. It is used in pesticides, pharmaceuticals, printing and dyeing...

Thursday, July 17, 2025

Quantity : 1kg; 25kg;

Sodium tert-butoxide is a white to off-white powder, widely used as a strong base in chemical, pharmaceutical, pesticide and organic synthesis in condensation, rearrangement and ring opening reactions. Stable at room temperature and pressure, avoid contact with strong reducing agent...

Tuesday, July 15, 2025

5-Methoxytryptamine (5-MT), also known as mexamine, is a tryptamine derivative closely related to the neurotransmitters serotonin and melatonin. 5-MT has been shown to occur naturally in the body in low levels. It is biosynthesized via the deacetylation of melatonin in the pineal gland...

Tuesday, July 15, 2025

Tryptamine is a monoamine alkaloid that can be synthesized by decarboxylation of the amino acid tryptophan. Notably, tryptamine can be found in fungi, plants, Amphibia, animals, and microbes.Tryptamine has an indole ring structure and a fused double ring that is composed of a benzene...

Tuesday, July 15, 2025

Quantity : 1kg; 25kg;

Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins. Trimethyl Orthoformate is the most simple orthoester. Used in organic...

Tuesday, July 15, 2025

Quantity : 1kg; 25kg;

Vitamin D is steroid derivatives. It is the general term for the compounds that have similar structures and have the effect of normal skeletal growth and maintenance. At present, there are at least more than ten kinds of sterols that have vitamin D activity. But there are only two...

Wednesday, July 09, 2025

Quantity : 1kg; 25kg;

Benzene is one of the most important basic organic chemical raw materials. Benzene can be derived into many important chemical intermediates through substitution reaction, addition reaction and benzene ring rupture reaction. It is an important basic raw material for the production...