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A4297020

Phel red indicator , 0.5%(w/v)inwater , 143-74-8

Synonym(s):
Phenol red;Phenolsulfonphthalein;Phenolsulfonphthalein solution

CAS NO.:143-74-8

Empirical Formula: C19H14O5S

Molecular Weight: 354.38

MDL number: MFCD00003552

EINECS: 205-609-7

Pack Size Price Stock Quantity
500ml RMB223.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: >300 °C
Boiling point: >300°C
Density  1.445 Mg m-3
refractive index  1.5300 (estimate)
Flash point: >300°C
storage temp.  no restrictions.
solubility  1 M NaOH: soluble1mg/mL
form  Solid
pka 7.9(at 25℃)
color  Red
PH Range 6.6(YELLOW)-8.0(RED)
Odor Odorless
PH 6.8~8.4
Water Solubility  0.77 g/L
λmax 557nm, 558nm, 360nm, 423nm, 433nm
Merck  14,7247
BRN  326470
Major Application Display device, sol-gel matrix, photoreceptors, fuel cells, waveguides, paints, detergents, cosmetics, antiperspirant composition, diapers, screening bacteria, detecting viable cells, diagnosis of urogenital ureaplasmosis, treatment of pathogen infections, amyloid-associated diseases, glaucoma, pulmonary hypertension, asthma, chronic obstructive pulmonary disease, erectile dysfunction, Raynaud’s syndrome, heparin overdose, vulvodynia, wound healing, psychoactive drugs, evaluating dental caries activity
InChIKey BELBBZDIHDAJOR-UHFFFAOYSA-N
LogP 3.020

Description and Uses

Phenol red belongs to the class of triphenylmethane dyes and is widely used in the textile industry.

As indicator in 0.02-0.05% alcohol solution. pH 6.8 yellow, 8.4 red.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P304+P340+P312
Hazard Codes  Xi,C
Risk Statements  36/37/38-34
Safety Statements  37/39-26-45-36/37/39-27
WGK Germany  3
RTECS  SJ7490000
TSCA  Yes
HS Code  29349990
Toxicity LD50 orl-rat: >600 mg/kg CTOXAO 4(2),185,71

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