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Thermo Scientific Chemicals α-Naphtholphthalein, pure, indicator

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Quantity:
1 g
25 g
5 g
Packaging:
Glass bottle
596-01-0
C28H18O4
418.448
MFCD00036202
HQHBAGKIEAOSNM-UHFFFAOYSA-N
68993
3,3-bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one
C1=CC=C2C(=C1)C(=CC=C2O)C3(C4=CC=CC=C4C(=O)O3)C5=CC=C(C6=CC=CC=C65)O

Product code 19012 Thermo Scientific

Catalog number 190120010

  • INR 4,815.00 / EA
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Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Indicator

Specifications

Absorbance 550 min. (at lamda max)
Melting Point 240.0°C to 250.0°C
Beilstein 18, I, 384
Merck Index 15, 6474
Infrared Spectrum Authentic
Lambda Max 648 to 654nm (in 0.1N NaOH)
Loss on Drying 5% max. (110°C, 1 hr.)
Formula Weight 418.45
Grade Pure
Packaging Glass bottle
Visual Transition Interval from pH 7.3 (pinkish-yellow) to pH 8.7 (greenish--blue)
Color Beige to Pink or Brown
Quantity 1 g
Physical Form Powder
Chemical Name or Material α-Naphtholphthalein
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Safety and Handling

EINECSNumber : 209-875-5

TSCA : TSCA