Campesterol

Campesterol phyproof® Reference Substance | PhytoLab
Campesterol
Campesterol

synonyms

24α-Methylcholesterol

synonyms alpha

24alpha-Methylcholesterol
Campesterol reference substance is a primary reference standard with certified absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).
The reference substance campesterol always contains a certain percentage of its epimer dihydrobrassicasterol. The epimers cannot be separated chromatographically, however, the ratio between campesterol and dihydrobrassicasterol can be determined by the evaluation of the 13C-NMR spectra. On the certificate of analysis the absolute purity values for campesterol, dihydrobrassicasterol and total sterol content (sum of campesterol and dihydrobrassicasterol) will be given. The chromatographic and absolute purity of the reference substance shown in this quotation refers to the total sterol content.
The reference substance campesterol always contains a certain percentage of its epimer dihydrobrassicasterol. The epimers cannot be separated chromatographically. However, the ratios between campesterol and dihydrobrassicasterol can be determined by the evaluation of the intensity of the respective carbon signals in the 13C-NMR spectra. From this ratio a factor is derived which is included in the calculation of the absolute purity for campesterol, dihydrobrassicasterol and the sum of both sterols.
soluble in methanol; practically insoluble in water
usually a stock item
refrigerated
Warning
ambient conditions
sterol
AZ_20366_EN.pdf
SDB_89514_EN.pdf
Campesterol phyproof® Reference Substance | PhytoLab
Campesterol Reference Substance | CAS # 474-62-4 | Herbal Reference Standard | Analytical Testing & Quality Control | From 215 € for 10 mg
Campesterol, Reference Substance, Herbal Reference Standard
campesterol-89514
89514
21.5
10
215
967.5
4568.75
8600
16125

cas

474-62-4
474
62
474
C28H48O
400.68

classification

5
5.2
5.2.1
Isoprenoids
Steroid-type
Sterols
P
2-8 °C

hazard symbols

hazard statements

H315
H319
H335

precautionary statements

P280l
P302+352a
P305+338+351
P312a
P501a
29061310
29061300

occurrence

Aesculus sp.
Aleurites sp.
Anacyclus sp.
Arctium sp.
Asphodelus sp.
Brassica sp.
Calendula sp.
Canna sp.
Cardiospermum sp.
Cassia sp.
Casuarina sp.
Centaurium sp.
Citrus sp.
Commiphora sp.
Cucurbita sp.
Dendranthema sp.
Euphorbia sp.
Fraxinus sp.
Ginkgo sp.
Glycine sp.
Hedera sp.
Helianthus sp.
Illicium sp.
Ilex sp.
Jatropha sp.
Lactuca sp.
Larix sp.
Lindera sp.
Lupinus sp.
Lycium sp.
Lycopodium sp.
Mallotus sp.
Marchantia sp.
Musa sp.
Myristica sp.
Olea sp.
Ononis sp.
Persea sp.
Quercus sp.
Rehmannia sp.
Ruscus sp.
Sambucus sp.
Sesamum sp.
Shorea sp.
Silybum sp.
Sinapis sp.
Syzygium sp.
Tanacetum sp.
Taraxacum sp.
Triticum sp.
Tussilago sp.
Ulmus sp.
Urginea sp.
botanical origin
28
H
441660
≥ 90.0 %
GC
U
122822
441318
441319
20366
04\/2022
24
09\/2025
7
powder
792