7-Diethylamino-4-methylcoumarin CAS#91-44-1

Excellent Fluorescent Brightening Performance: Effectively enhances whiteness and brightness in textile and paper applications, delivering strong luminosity improvement.


Stable and Reliable Photophysical Properties: Features distinct absorption and emission spectra, ensuring consistent and dependable fluorescence performance.


Wide Applicability in Industry and Research: Suitable for industrial use as a brightening agent and for academic research in fluorescence-based analytical techniques.


Good Solubility and High Product Consistency: Easily soluble in organic solvents and manufactured with a precise molecular structure for stable quality and performance.



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Product Description

Products Description of 7-Diethylamino-4-methylcoumarin CAS#91-44-1

7-Diethylamino-4-methylcoumarin is an important organic compound with a wide range of applications. It is mainly used as a fluorescent brightener in the textile and paper industries, where it effectively improves the whiteness and brightness of materials. Practical cooperation cases demonstrate its successful use in enhancing the luminosity of various products, highlighting its proven performance in real applications.


Product Application of 7-Diethylamino-4-methylcoumarin CAS#91-44-1

In academic research, this compound attracts considerable interest due to its photophysical characteristics, contributing to progress in fluorescence-based analytical technologies. From a manufacturing perspective, we provide a stable and reliable supply, supported by a well-defined molecular structure that ensures consistent performance. Its key features include a bright yellow appearance, good solubility in organic solvents, and distinctive absorption and emission spectra, confirming its value as an efficient fluorophore for both industrial and research purposes.

Product Information

Parameters

Melting point72-75 °C (lit.)
Boiling point240 °C / 6.5mmHg
density1.122
vapor pressure0-0.003Pa at 20-25℃
refractive index1.5300 (estimate)
Fp152°C
storage temp.Sealed in dry,Room Temperature
solubilityChloroform (Slightly), Methanol (Slightly)
pka3.51±0.20(Predicted)
formCrystalline Powder
colorLight beige to light purple
Water Solubilityslightly soluble
BRN193303
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyAFYCEAFSNDLKSX-UHFFFAOYSA-N
LogP2.523-2.8 at 23-25℃
CAS DataBase Reference91-44-1(CAS DataBase Reference)
NIST Chemistry ReferenceCoumarin, 7-(diethylamino)-4-methyl-(91-44-1)
EPA Substance Registry System7-Diethylamino-4-methylcoumarin (91-44-1)


Safety Information


Hazard CodesXn
Risk Statements36/37/38-20/21
Safety Statements37/39-26
WGK Germany2
RTECSGN6370000
TSCAYes
HS Code29322090
Hazardous Substances Data91-44-1(Hazardous Substances Data)
ToxicityLD50 oral in rat: 5gm/kg


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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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