Thymol Blue (sodium) [CAS 62625-21-2]

Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6. Quantitative detection is achieved through the absorption peak shift (435 nm/596 nm) of the UV-visible spectrum. Thymol blue sodium can be fixed in a silica gel matrix through sol-gel technology to form a solid-state sensor for in-situ pH measurement in the marine environment and acid-base monitoring in the biomedical field[1][2].

[62625-21-2]

C27H29NaO5S

488.57

[Na].O=S1(=O)OC(C2=CC(=C(O)C=C2C)C(C)C)(C3=CC(=C(O)C=C3C)C(C)C)C=4C=CC=CC41

Fluorescent Dye

DMSO : 6.72 mg/mL (ultrasonic; adjust pH to 4 with 1 M HCl)

RT, sealed storage, away from moisture and light

Room Temperature

H315, H319, H335

H315, H319, H335