Guidechem's HOT RFQ – 3rd Week of October 2025

Column Purpose & Target

Guidechem HOT RFQ is a weekly column that highlights the most valuable and trending chemical purchase requests from our platform. It helps both buyers and suppliers stay informed and act quickly in the global chemical trade.

Frequency: Weekly, published every Thursday.

Benefits

• Buyers: Discover popular RFQs and learn how to submit high-quality RFQs to attract more supplier quotes.
• Suppliers: Access timely global demand insights and learn to reply efficiently to quality RFQs to increase order rates.

Weekly HOT RFQs

?? Asia

Vitamin D3 (CAS: 67-97-0)
Country: Egypt
Quantity: 10 KG
A fat-soluble vitamin essential for calcium absorption and bone health.

Biotin (CAS: 58-85-5)
Country: Egypt
Quantity: 50 KG
Also known as Vitamin B7, used for metabolic health and hair, skin, and nail growth.

Thiamine hydrochloride (CAS: 67-03-8)
Country: Egypt
Quantity: 2 T
A water-soluble vitamin B1 compound used in nutritional supplements.

Magnesium aluminum silicate (CAS: 1327-43-1)
Country: Korea
Quantity: 25 KG
A pharmaceutical excipient used as a suspending and thickening agent.

Tiopronin Impurity 1 (CAS: 6182-96-3)
Country: India
Quantity: 0.5 G
An analytical reference standard used for impurity profiling in pharmaceuticals.

N-(2-Aminoethyl)phthalimide (CAS: 71824-24-3)
Country: India
Quantity: 2 G
An intermediate used in organic synthesis and pharmaceutical development.

Pyridoxine Impurity 32 (CAS: 19203-53-3)
Country: India
Quantity: 2 G
A chemical impurity standard for Vitamin B6 (Pyridoxine) analysis.

8-Hexadecene (CAS: 18899-20-2)
Country: India
Quantity: 10 G
An organic compound used in polymer and surfactant synthesis.

Dichloromethoxycarbonyl Chloride (CAS: 22128-63-8)
Country: India
Quantity: 10 G
A reactive intermediate used in organic and pharmaceutical synthesis.

1β-Hydroxycholic acid (CAS: 80875-94-1)
Country: China
Quantity: 1 G
A bile acid derivative used in biochemical and pharmaceutical research.

7α-Limonyl acetate (CAS: 1110-03-8)
Country: China
Quantity: 20 mg
A natural flavor compound used in fragrance and essential oil formulations.

Epi-limonyl acetate (CAS: 990-86-3)
Country: China
Quantity: 20 mg
A terpenoid ester used in flavor, fragrance, and chemical research.

4,4'-(quinoxaline-2,3-diyl)bis([1,1'-biphenyl]-4-amine) (CAS: 1919835-80-5)
Country: Hong Kong
Quantity: 1 KG
An organic compound used in OLED and electronic material synthesis.

Benzene,1,1'-oxybis[methyl-,sulfonated,ammonium salts (CAS: 75314-26-0)
Country: India
Quantity: 10 T
A surfactant and emulsifier used in industrial and detergent applications.

Acetylacetone (CAS: 123-54-6)
Country: Korea
Quantity: 500 G
A chelating agent and reagent widely used in metal complex formation.

Sodium mannuronate methylsilanol (CAS: 23732-95-8)
Country: Korea
Quantity: 10 KG
A silanol derivative used in cosmetic and skincare formulations.

1-Azabicyclo[3.2.1]octane-5-carboxylic acid hydrochloride (CAS: 119102-94-2)
Country: India
Quantity: 10 G
A chiral building block for pharmaceutical and chemical synthesis.

1-Azabicyclo[3.2.1]octane-5-carboxylic acid (CAS: 119103-00-3)
Country: India
Quantity: 10 G
An intermediate used in the synthesis of tropane alkaloid derivatives.

3,4-Epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate (CAS: 2386-87-0)
Country: Korea
Quantity: 500 G
An epoxy resin monomer used in coatings, adhesives, and composites.

Aluminum acetylacetonate (CAS: 13963-57-0)
Country: Korea
Quantity: 500 G
A coordination compound used as a catalyst and precursor in material synthesis.

4,4′-Bis(α,α-dimethylbenzyl)diphenylamine (CAS: 10081-67-1)
Country: Korea
Quantity: 1 KG
An antioxidant used in rubber, lubricants, and polymer stabilization.

Di-(2-Ethylhexyl)4,5-Epoxytetrahydrophthalate (CAS: 10138-36-0)
Country: Korea
Quantity: 5 KG
A plasticizer used to improve flexibility in polymer materials.

Ethylene Oxide (CAS: 75-21-8)
Country: Saudi Arabia
Quantity: 1 KG
A highly reactive gas used in sterilization and chemical synthesis.

Amines, C36-alkylenedi- (CAS: 68955-56-6)
Country: Saudi Arabia
Quantity: 1 KG
A long-chain amine compound used as a curing agent in epoxy resins.

Cesium fluoroaluminate (CAS: 138577-01-2)
Country: China
Quantity: 10 KG
A specialty salt used as a fluxing agent in aluminum brazing applications.

?? America

Sodium pareth sulfate (CAS: 68585-34-2)
Country: Canada
Quantity: 400 T
An anionic surfactant widely used in detergents, shampoos, and cleaning formulations for its foaming ability.

Cis-2-Butene (CAS: 590-18-1)
Country: United States
Quantity: 2 T
A hydrocarbon used as a chemical intermediate in polymer, fuel, and butadiene production.

Retatrutide (CAS: 2381089-83-2)
Country: United States
Quantity: 0.03 G
An investigational peptide drug under research for weight management and metabolic disorders.

?? Europe

Tetrakis(3-aminopropyl)ammonium (CAS: 111216-37-6)
Country: Spain
Quantity: 1 mg
A polyamine compound used as a crosslinking agent and in biochemical research applications.

Ozanimod (CAS: 1306760-87-1)
Country: Turkey
Quantity: 1 KG
A selective sphingosine-1-phosphate receptor modulator used for treating multiple sclerosis.

Capecitabine (CAS: 154361-50-9)
Country: Turkey
Quantity: 100 KG
An oral prodrug of 5-fluorouracil widely used as a chemotherapeutic agent for cancer treatment.

Acrylamidine (CAS: 19408-49-2)
Country: Belgium
Quantity: 1 KG
A reactive amidine compound applied in polymer modification and organic synthesis research.

2,4-Dimethylthiophen-3-ol (CAS: 121144-97-6)
Country: Italy
Quantity: 0.01 G
An organosulfur compound used as a flavor intermediate and in heterocyclic chemistry studies.

?? Global

tert-butyl 4-(2-chloropyrimidin-5-yl)oxybutanoate (CAS: 945771-55-1)
Country: N/A
Quantity: 10 KG
An intermediate compound used in the synthesis of pharmaceuticals and agrochemical derivatives.

Prothionamide (CAS: 14222-48-1)
Country: N/A
Quantity: 100 T
An antituberculosis drug used in the treatment of multidrug-resistant tuberculosis (MDR-TB).

Betaines, bis(hydroxyethyl)tallow alkyl (CAS: 70750-46-8)
Country: N/A
Quantity: 100 G
A mild amphoteric surfactant used in personal care and household cleaning products.

PEG-6 Caprylic/Capric Glycerides (CAS: 127281-18-9)
Country: N/A
Quantity: 50 KG
A nonionic surfactant and emulsifier used in cosmetic formulations and skincare products.

1-Phenyl-2-nitropropene (CAS: 705-60-2)
Country: N/A
Quantity: 1 KG
An organic intermediate commonly used in chemical and pharmaceutical synthesis.

Tadalafil (CAS: 171596-29-5)
Country: N/A
Quantity: 2 G
A pharmaceutical active ingredient used to treat erectile dysfunction and pulmonary hypertension.

1-Phenyl-2-nitropropene (CAS: 705-60-2)
Country: N/A
Quantity: 100 KG
A key intermediate in the preparation of aromatic and aliphatic amines for fine chemical production.

For Buyers – How to Post an RFQ

Why post an RFQ on Guidechem?

• Reach thousands of verified global suppliers
• Increase visibility and get faster quotes
• Benefit from transaction assurance and logistic support

How to Post an RFQ on Guidechem?

Posting a Request for Quotation (RFQ) on Guidechem is simple and efficient. Follow these steps to connect with the best suppliers worldwide:

1. Register and Log In to your Guidechem account.
2. Click on the “Post an RFQ” button and fill in the product details, including quantity and country of origin.
3. Receive competitive quotes from suppliers and choose the best match for your needs.

Whether you're sourcing specialty chemicals or bulk raw materials, Guidechem is here to help! Connect with trusted suppliers and streamline your procurement process today. ??

For Suppliers – How to Leverage HOT RFQs

Why monitor HOT RFQs?

• Stay ahead by spotting active global demands
• Match with serious buyers faster
• Improve quote success rate with well-targeted replies

Tips to Respond Efficiently:

1. Reply within 24 hours of RFQ publication
2. Include detailed quotation: lead time, packaging, incoterms
3. Highlight factory certifications and supply capacity
4. Attach documents such as COA, MSDS, product photos

* If you’d like your inquiry to be featured next week, make sure to post a complete RFQ with valid contact and product details.

How to Post an RFQ on Guidechem?