Schizandrin A

Modify Date: 2024-01-02 11:19:23

Schizandrin A Structure
Schizandrin A structure
 Common Name Schizandrin A
CAS Number 61281-38-7 Molecular Weight 416.507
Density 1.1±0.1 g/cm3 Boiling Point 544.2±50.0 °C at 760 mmHg
Molecular Formula C24H32O6 Melting Point 114 °C
MSDS Chinese USA Flash Point 215.6±30.0 °C

 Use of Schizandrin A


Schisandrin A inhibits CYP3A activity with an IC50 of 6.60 μM and Ki of 5.83 μM, respectively.

 Names

Name Schisandrin A
Synonym More Synonyms

 Schizandrin A Biological Activity

Description Schisandrin A inhibits CYP3A activity with an IC50 of 6.60 μM and Ki of 5.83 μM, respectively.
Related Catalog
Target

CYP3A:6.6 μM (IC50)

Autophagy

In Vitro Schisandrin A (Sch A) strongly inhibits microsomal midazolam 1-hydroxylation catalyzed by CYP3A, with an IC50 of 6.60 μM. The recovery of enzyme activity in the absence or presence of Schisandrin A is shown in dilution assay plots. The Ki value for Schisandrin A is obtained from the Dixon plots and is 5.83 μM. The inactivation of rat liver microsomal midazolam 1-hydroxylation activity by Schisandrin A in the presence of NADPH is found to be time- and concentration-dependent. The Kinact and Ki are estimated to be 0.134/min and 4.51 μM, respectively for Schisandrin A[1].
In Vivo Schisandrin A (SchA) significantly inhibits CYP3A activity in rat hepatic microsomes and Vmax value of each group in a concentration-dependent manner. The double-reciprocal plots and the secondary plot show that Schisandrin A inhibits CYP3A activity, with an apparent Ki value of 30.67 mg/kg. In each Schisandrin A-treated group, Schisandrin A also significantly decreases 1-hydroxymidazolam plasma concentrations compared with the negative group (to levels similar to the positive group)[2].
Kinase Assay For the inactivation of CYP3A4 activity, microsomes are preincubated with inhibitors (Schisandrin A, 2.4 μM, 7.2 μM and 12.0 μM; or Sch B) at 37°C for up to 15 min in the presence of NADPH. Reactions are initiated with the addition of substrate midazolam and incubated at 37°C for 10 min. The enzyme inactivation is analyzed. Duplicates are prepared and tested[1].
Animal Admin Rats[2] Healthy male Sprague-Dawley rats, weighing 250-280 g and 2-3 months of age, are used. The rats are randomly divided into five groups with 16 rats in each group. The animals are administered once daily for three consecutive days. The Schisandrin A-treated groups are administered intragastrically with doses of 32, 16 or 8 mg/kg of Schisandrin A (physiological saline as vehicle), and the rats are similarly administered with equal volume of vehicle in the negative control group and Ketoconazole (75 mg/kg) in the positive control group. All animals are allowed free access to food but are fasted overnight before scarification to reduce the intestinal content, and each group is randomly divided into two parts with eight rats in each part[2].
References

[1]. Li WL, et al. Inhibitory effects of Schisandrin A and Schisandrin B on CYP3A activity. Methods Find Exp Clin Pharmacol. 2010 Apr;32(3):163-9.

[2]. Li WL, et al. Inhibitory effects of continuous ingestion of Schisandrin A on CYP3A in the rat. Basic Clin Pharmacol Toxicol. 2012 Feb;110(2):187-92.

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 544.2±50.0 °C at 760 mmHg
Melting Point 114 °C
Molecular Formula C24H32O6
Molecular Weight 416.507
Flash Point 215.6±30.0 °C
Exact Mass 416.219879
PSA 55.38000
LogP 5.87
Vapour Pressure 0.0±1.4 mmHg at 25°C
Index of Refraction 1.520
Storage condition 2-8°C

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
HP1595000
CHEMICAL NAME :
Dibenzo(a,c)cyclooctene, 5,6,7,8-tetrahydro-6,7-dimethyl-1,2,3,10,11,12-hexame thoxy-
CAS REGISTRY NUMBER :
61281-38-7
LAST UPDATED :
199309
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C24-H32-O6
MOLECULAR WEIGHT :
416.56
WISWESSER LINE NOTATION :
L B686&T&J CO1 DO1 EO1 I1 J1 NO1 OO1 PO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Behavioral - altered sleep time (including change in righting reflex)
REFERENCE :
CMJODS Chinese Medical Journal (Beijing, English Edition). (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1975- Adopted vol. no. 92 in 1979. Volume(issue)/page/year: 93,41,1980

 Safety Information

Hazard Codes Xn
Safety Phrases 24/25
RIDADR NONH for all modes of transport
RTECS HP1595000
HS Code 2932999099

 Precursor & DownStream

Precursor  1

DownStream  1

 Customs

HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

Dibenzo(a,c)cyclooctene, 5,6,7,8-tetrahydro-1,2,3,10,11,12-hexamethoxy-6,7-dimethyl-, (6R,7S,12aS)-
(-)-Deoxyschisandrin
(+)-Deoxyschisandrin
Schizandrin A
(+)-Dimethylgomisin J
(6R,7S)-1,2,3,10,11,12-Hexamethoxy-6,7-dimethyl-5,6,7,8-tetrahydrodibenzo[a,c][8]annulene
UNII:74XQL5DO3S
Dibenzo[a,c]cyclooctene, 5,6,7,8-tetrahydro-1,2,3,10,11,12-hexamethoxy-6,7-dimethyl-, (6R,7S)-
Dimethylgomisin J
(-)-Dimethylgomisin J
DEOXYSCHISANDRIN
SchisandrinA
Doxyschizandrin
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