3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol

3,3,3',3'-四甲基-1,1'-螺二茚满-6,6'-二醇

Also known as: 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi[1H-indene]-6,6'-diol, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi-1H-indene-6,6'-diol, spirobiindane-6,6'-diol, HIV-1 integrase inhibitor 8

3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol (CAS 1568-80-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H24O2 and a molecular weight of 308.41400 g/mol. It is also known as 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi[1H-indene]-6,6'-diol and 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi-1H-indene-6,6'-diol. Key properties include a melting point of 213-214 °C, a boiling point of 478.5℃ at 760 mmHg, a density of 1.21±0.1 g/cm3(Predicted) and a flash point of 220.4℃. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1568-80-5
Jingsj CID
J-1983433-1
Molecular Formula
C21H24O2
Chinese Name
3,3,3',3'-四甲基-1,1'-螺二茚满-6,6'-二醇
Molecular Weight
308.41400 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point213-214 °C
Boiling Point478.5℃ at 760 mmHg
Density1.21±0.1 g/cm3(Predicted)
Flash Point220.4℃

Frequently Asked Questions

What is the CAS number of 3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol?

The CAS number of 3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol is 1568-80-5.

What are the molecular formula and molecular weight of 3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol?

3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol has molecular formula C21H24O2 and molecular weight 308.41400 g/mol.

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

Last updated:

How to cite: Jingsj. "3,3,3',3'-tetramethyl-1,1'-spirobiindane-6,6'-diol (CAS 1568-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1983433-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.