9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one

Also known as: 6'-(Diethylamino)-1',2'-benzofluoran, 3-Diethylaminobenzo[a]fluoran, Spiro[isobenzofuran-1(3H),12'-[12H]benzo[a]xanthene]-9'-diethylamino-3-one, 9'-(diethylamino)-3H-spiro[2-benzofuran-1,12'-benzo[a]xanthen]-3-one, Red DCF, Color Former Red 3, Copikem 747, Yamamoto Red 3

9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one (CAS 26628-47-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C28H23NO3 and a molecular weight of 421.487 g/mol. Key properties include a melting point of 221ºC, a boiling point of 642.4±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 342.3±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 26628-47-7
Jingsj CID: J-46589-4
Molecular Formula: C₂₈H₂₃NO₃
Molecular Weight: 421.487 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	221ºC
Boiling Point	642.4±55.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	342.3±31.5 °C
Exact Mass	421.167786
PSA	38.77000
LogP	6.66
Vapor Pressure	0.0±1.9 mmHg at 25°C
Refractive Index	1.717

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen 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 9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one?

The CAS number of 9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one is 26628-47-7.

What are the molecular formula and molecular weight of 9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one?

9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one has molecular formula C28H23NO3 and molecular weight 421.487 g/mol.

What are the upstream and downstream products of 9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one?

For 9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one, Upstream Products: 2-(4-Diethylamino-2-hydroxybenzoyl)benzoic acid, 2-Naphthol, 3-Hydroxyphenylboronic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "9-(Diethylamino)spiro[12H-benzo[a]xanthene-12,1'(3'H)-isobenzofuran]-3'-one (CAS 26628-47-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46589-4 (accessed 2026-11-09).

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