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[d-Camphor Reference Standard (Control 911) and dl-Camphor Reference Standard (Control 911) of the National Institute of Hygienic Sciences]

[d-Camphor Reference Standard (Control 911) and dl-Camphor Reference Standard (Control 911) of the National Institute of Hygienic Sciences]

W Izumi, M Murai, H Komatsu, S Ishimitsu, S Okada

Eisei Shikenjo Hokoku. 1992;(110):116-8.

PMID: 1364420

Abstract:

The raw materials of d-camphor and dl-camphor were examined for preparation of the "d-Camphor Reference Standard" and "dl-Camphor Reference Standard". Analytical data obtained were as follows: ultraviolet spectrum, lambda max = 290nm; infrared spectrum, 2958, 1742, 1045cm-1; optical rotation, [alpha]D20 = +42.7 degrees (d-camphor), [alpha]D20 = -0.3 degrees (dl-camphor); melting point, 180 degrees C (d-camphor), 179 degrees C (dl-camphor); gas-chromatography (GC), one impurity was detected in d-camphor and three impurities in dl-camphor; assay, 99.5% (d-camphor), 99.5% (dl-camphor) by GC. Based on the above results, these raw materials were authorized as the Japanese Pharmacopoeia Standard (Control 911).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP76222	Camphor (dl)		76-22-2	Price

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