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LC4516 Phenolphthalein
indicator ACS,Reag. Ph Eur


Order number Packaging Quantity Price €
AC31516 Glass bottle 25 g 19.58
AC31516 Glass bottle 100 g 27.23
AC31516 Glass bottle 500 g 95.40


Product information
Grade ACS,Reag. Ph Eur
Hill Formula C20H14O4
HS Code 2932 29 10
EC number 201-004-7
Molar mass 318.32 g/mol
EC index number 604-076-00-1
CAS number 77-09-8


Chemical and physical data
Solubility 0.092 g/l (20 °C)
Melting point 258 – 262 °C
Molar mass 318.32 g/mol
Density 1.30 g/cm3 (20 °C)
Bulk density 350 – 450 kg/m3


Safety information according to GHS
Hazard Statement(s) H350: May cause cancer.
H341: Suspected of causing genetic defects.
H361f: Suspected of damaging fertility.
Precautionary Statement(s) P201: Obtain special instructions before use.
P281: Use personal protective equipment as required.
P308 + P313: IF exposed or concerned: Get medical advice/attention.
Signal Word Danger
Hazard Pictogram(s)
RTECS SM8380000
Storage class 6.1A Combustible substances, toxic
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 45-62-68
May cause cancer.Possible risk of impaired fertility.Possible risk of irreversible effects.
S Phrase S 53-45
Avoid exposure – obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger carcinogenic, toxic for reproduction, mutagenic
Hazard Symbol Toxic


Identity (UV/VIS-Spectrum) passes test
Clarity of the alkoholic solution (10 g/l ethanol) Clear to not more than a faint trace of turbidity or insoluble matter should remain.
Absorption maximum λ max (buffer pH 9.8) 551 – 554 nm
Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.01 g/l; buffer pH 9.8; calculated on anhydrous substance) 700 – 750
Transition range
– according to ACS
passes test
pH 8.2 – pH 9.8 Clourless – red-violet
Loss on drying (110 °C) ≤ 1 %