PRODUCTS

1-Naphtholphthalein CAS 596-01-0 IND10G

Identification

Product Name

1-Naphtholphthalein; α-Naphtholphthalein

CAS

596-01-0

EC No.

209-875-5

Cat. No.

N1110630025; N1110630500

Formula

C28H18O4

M.W.

418.44

Synonyms

Alpha-Naphtholphthalein; 3,3-bis(4-hydroxy-1-naphthyl)phthalide;

Application

For laboratory use as indicator; Intermediate in organic syntheses;

Specification

Assay (C28H18O4)

98.0% min.

Loss on drying (110?°C):

≤ 5 %

Physical Data

Appearance

pink to beige or brown fine crystalline powder

Transition range:

7.1(pink brownish)-8.3(blue/green)

Solubility

Soluble in ethanol. Insoluble in water.

 

 

Melting point

238-240℃

Boiling point

----

Density

350g/cm3

Storage:

Store below +30°C. Keep in a tightly closed light-resistant container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from incompatible substances.

Grade

IND25G; IND500G 98%

Packing

IND25G; IND500G 98%

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