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Solvent Yellow 43

Also known as: 2-butyl-6-(butylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, 2-Butyl-6-(butylamino)-1H-benz(de)isoquinoline-1,3(2H)-dione, N-Butyl-4-(butylamino)-1,8-naphthalenedicarbimide, 4-(Butylamino)-N-butyl-1,8-naphthalimide, 4-Butylamino-N-butyl-1,8-naphthalimide, Day-Glo Tigris Yellow, Fluorescent Brilliant Yellow R, Fluorescent Brightener 75, Solvent Yellow 116, DFSB-K 43

Solvent Yellow 43 (CAS 19125-99-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H24N2O2 and a molecular weight of 324.417 g/mol. Key properties include a melting point of 126-127ºC, a boiling point of 500.4±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 256.4±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
19125-99-6
Jingsj CID
J-1361049-6
Molecular Formula
C20H24N2O2
Molecular Weight
324.417 g/mol
Category
Organic Compounds
Last updated
11/2/2026

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Physicochemical Properties

Melting Point126-127ºC
Boiling Point500.4±33.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point256.4±25.4 °C
Exact Mass324.183777
PSA120.74000
LogP3.75
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.624

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Solvent Yellow 43?

The CAS number of Solvent Yellow 43 is 19125-99-6.

What are the molecular formula and molecular weight of Solvent Yellow 43?

Solvent Yellow 43 has molecular formula C20H24N2O2 and molecular weight 324.417 g/mol.

What are the upstream and downstream products of Solvent Yellow 43?

For Solvent Yellow 43, Upstream Products: Butylamine, 4-Bromo-1,8-naphthalic anhydride, 4-Nitro-1,8-naphthalic anhydride.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Solvent Yellow 43 (CAS 19125-99-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361049-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.