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3-Hydroxy-2-oxindole

Also known as: Dioxindole, 3-Hydroxyindolin-2-one, 1,3-Dihydro-3-hydroxy-2H-indol-2-one, 2,3-Dihydro-3-hydroxy-1H-indole-2-one, 3-Hydroxy-1H-indole-2(3H)-one, 2-Indolinone,3-hydroxy, 3-hydroxy-1,3-dihydroindol-2-one, o-Aminomandelic lactam

3-Hydroxy-2-oxindole (CAS 61-71-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2 and a molecular weight of 149.14700 g/mol. Key properties include a boiling point of 368.2ºC at 760 mmHg, a density of 1.38g/cm3 and a flash point of 176.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
61-71-2
Jingsj CID
J-1116685-1
Molecular Formula
C8H7NO2
Molecular Weight
149.14700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point368.2ºC at 760 mmHg
Density1.38g/cm3
Flash Point176.5ºC
Exact Mass149.04800
PSA49.33000
LogP0.81010
Refractive Index1.639

Customs & Trade Information

HS Code2933790090
Summary2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Hydroxy-2-oxindole?

The CAS number of 3-Hydroxy-2-oxindole is 61-71-2.

What are the molecular formula and molecular weight of 3-Hydroxy-2-oxindole?

3-Hydroxy-2-oxindole has molecular formula C8H7NO2 and molecular weight 149.14700 g/mol.

What are the upstream and downstream products of 3-Hydroxy-2-oxindole?

For 3-Hydroxy-2-oxindole, Upstream Products: isatin, Indole, Water; Downstream Products: Indoline, Ethyl benzoate, Oxindole.

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

Last updated:

How to cite: Jingsj. "3-Hydroxy-2-oxindole (CAS 61-71-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1116685-1 (accessed 2026-11-09).

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