# 淡黄 (CAS 36886-76-7)

**CAS:** 36886-76-7  
**PubChem CID:** [169832](https://pubchem.ncbi.nlm.nih.gov/compound/169832)  
**Molecular formula:** C22H16O5  
**Molar mass:** 360.4 g/mol  
**IUPAC:** 3',6'-dimethoxyspiro[2-benzofuran-3,9'-xanthene]-1-one  
**SMILES:** `COC1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)OC)C5=CC=CC=C5C(=O)O3`  
**InChIKey:** `GRIKUIPJBHJPPN-UHFFFAOYSA-N`  
**InChI:** `InChI=1S/C22H16O5/c1-24-13-7-9-17-19(11-13)26-20-12-14(25-2)8-10-18(20)22(17)16-6-4-3-5-15(16)21(23)27-22/h3-12H,1-2H3`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| logP (XLogP3) | 4.1 |
| PSA | 54 Ų |
| Hydrogen bond donors | 0 |
| Hydrogen bond acceptors | 5 |
| Rotatable bonds | 2 |
| Heavy atoms | 27 |

## 3D structure

The molecule contains 43 atoms connected by 47 chemical bonds. Interactive 3D model available at: https://molgod.org/molekula/36886-76-7/

## Synonyms

- Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dimethoxy-
- EINECS 253-255-7
- Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dimethoxy-
- RefChem:888774
- DTXCID7039254
- 36886-76-7
- 3',6'-Dimethoxyfluoran
- 3',6'-Dimethoxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
- 3,6-DIMETHOXYFLUORAN
- 3',6'-dimethoxyspiro[2-benzofuran-3,9'-xanthene]-1-one

## Available in the shop

[淡黄 (CAS 36886-76-7) — Shenyang Photosensitive Research Institute](https://molgod.org/sds-cards/%e6%b7%a1%e9%bb%84-cas-36886-76-7-shenyang-photosensitive-research-institute/)

## Data sources

- [PubChem CID 169832](https://pubchem.ncbi.nlm.nih.gov/compound/169832)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=36886-76-7)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=36886-76-7)

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*Last updated: 2026-09-02 · Generator: MOL-GOD v3.12.33*