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National Institute of Allergy and Infectious Disease
NIH 3D
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NIH3D

Phenol Red

PubChem 4766
was used by NIH 3D workflows to automatically generate models for
Josh Hernandez
Created:
2/26/18
Submitted:
10/7/26
Published:
10/7/26
ball-and-stick, color, print caution
4766-bas-color-print_cautionAtoms shown as ball-and-stick (geometry appears faceted on screen; apply smooth normals in Blender or similar to improve visualization; generally smooth when 3D printed) with standard colors. 3D printable, with caution, using certain 3D printers.

Select an image below to view

ball-and-stick, color, print cautionball-and-stick, no color, NIH 3D repairedthin sticks, colorthin sticks, no colorthick sticks, color, print cautionthick sticks, no color, NIH 3D repairedspace-filled, color, print cautionspace-filled, no color, NIH 3D repaired

Learn more about NIH 3D workflow outputs

3DPX-008744

NIH 3D DOI:

https://doi.org/10.60705/3dpx/8744.3

Licensing:

CC-BY
How to cite this NIH 3D entry
445
23
Version 3

Category

Small Molecules
Small Molecules
Description
Phenol red is 3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxyphenyl groups. A pH indicator changing colour from yellow below pH 6.8 to bright pink above pH 8.2, it is commonly used as an indicator in cell cultures and in home swimming pool test kits. It is also used in the (now infrequently performed) phenolsulfonphthalein (PSP) test for estimation of overall blood flow through the kidney. It has a role as a diagnostic agent, an acid-base indicator and a two-colour indicator. It is a member of phenols, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.
Source Data Details
https://pubchem.ncbi.nlm.nih.gov/image/imagefly.cgi?cid=4766&width=400&height=400