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Home - Products - Biological Stains & pH Indicators -
THYMOL BLUE
SPECIFCIATION
 PRODUCT NAME  THYMOL BLUE
 CAS NO.  76-61-9
 CHEMICAL FORMULA  C27H30O5S
 MOLECULAR WEIGHT  466.60
 MELTING POINT
 221 - 224° C
 DYE CONTENT  ~95%
 SOLUTION CLARITY (ETOH)  TO PASS
 TRANSITION RANGE  PH 1.2 - 2.8 RED TO YELLOW PH 7.8 - 9.5  YELLOW TO BLUE
 ABSORPTIVITY (PH 1.2) 543-547 NM  400 - 500
 ABSORPTIVITY (PH 2.8) 431-436 NM  200 - 300
 ABSORPTIVITY (PH 7.8) 431-436 NM  200 - 300
 ABSORPTIVITY (PH 9.5) 594-598 NM  450 - 550
 LOSS ON DRYING (110° C)  <3%
 
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