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  6. Thermo Scientific Chemicals alpha-Naphtholphthalein, pure, indicator

Thermo Scientific Chemicals alpha-Naphtholphthalein, pure, indicator

Catalog No. AC190120050
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AC190120050 5 g Glass bottle
AC190120010 1 g Glass bottle
AC190120250 25 g Glass bottle
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Catalog No. AC190120050 Supplier Thermo Scientific Chemicals Supplier No. 190120050
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Description

CAS: 596-01-0 | C28H18O4 | 418.448 g/mol

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

Chemical Identifiers

CAS 596-01-0
Molecular Formula C28H18O4
Molecular Weight (g/mol) 418.448
MDL Number MFCD00036202
InChI Key HQHBAGKIEAOSNM-UHFFFAOYSA-N
PubChem CID 68993
IUPAC Name 3,3-bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one
SMILES C1=CC=C2C(=C1)C(=CC=C2O)C3(C4=CC=CC=C4C(=O)O3)C5=CC=C(C6=CC=CC=C65)O

Specifications

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

EINECSNumber 209-875-5
TSCA TSCA

RUO – Research Use Only