Phloroglucinol 108-73-6

Product Name

Phloroglucinol

CAS

108-73-6

MF

C6H6O3

MW

126.11

EINECS

203-611-2

Items

Acceptance criteria

Results

Appearance

White or almost white powder

White powder

Solubility

Sparingly soluble in water, freely soluble in ethanol(96%),practically insoluble in methylene chloride

Conforms

Identification

(a)IR

(a)The infrared spectrum of the product should

beconsistent with that of the control product anhydrous

phloroglucinol CRS

Conforms

(b)TLC

(b)The principal spot in the chromatogram obtained with

the test solution is similar in position and size to the

reference solution

Conforms

(c) Loss on drying

(c)Maximum 1.0per cent

0.3%

Appearance of solution

Clear and not more intensely coloured than reference solution BY5

Conforms

PH

4.0 to 6.0

5.6

Related substances

Impurity A not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Impurity D not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Impurity E not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Impurity K not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Impurity L not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Impurity I not more than 1.5 times the principal peak in the chromatogram obtained wihe refence solution (0.15 per cent)

Not detected

Unspecified impurities impurity for each impurity not more than the principal peak in the chromatogram obtained wihe refence solution (0.1 per cent)

Not detected

Total not more than 3 times the principal peak in the chromatogram obtained wihe refence solution (0.3 per cent)

Not detected

Chlorides

Maximum 200ppm

Conforms

Sulfates

Maximum 500ppm

Conforms

Sulfated ash

Maximum 0.1per cent

0.04%

Loss on drying

Maximum 1.0per cent

0.3%

Residual solvent

1,2,4-trimethyl benzene not more than 20ppm

Not detected

Content

99.0 per cent to 101.0 per cent（dried substance）

100.0%

Conclusion: The results conform with Ph. Eur. 9.0