Diethylstilbestrol CAS56-53-1 Diethylstilbestrol (DES)

Model: MOS
Place of Origin: Zhejiang,China (Mainland)

inquiry

skype basketAdd to Basket  Edit

Share |

Product Description

Ethylstilbestrol is a synthetic non-steroidal estrogen, which can inhibit the secretion of gonadotropin in the pituitary gland, thus altering the hormone balance in the body and destroying the growth and development conditions of tumor tissue.


Diethylstilbestrol indications:

1. Supplementary estrogen deficiency in the body, such as atrophic vaginitis, female gonadal dysplasia, menopausal syndrome, senile vaginal dryness and vaginitis, ovariectomy, primary ovarian deficiency.

2. breast cancer, postmenopausal and male advanced breast cancer, who can not be operated on.

3. prostate cancer can not be treated with advanced surgery.

4. prevent postpartum lactation.


 

ITEM

STANDARD

RESULT

Appearance

A white or almost white, crystalline powder;

White powder

Solubility

practically insoluble in water, freely soluble in alcohol. It dissolves in solutions of the alkali hydroxides.

Complies

Identification

A. Ultraviolet Absorption. Absorptivities at

230 to 350nm do not differ by more than 3.0%.

A. Positive


B.The retention time of the major peak in the chromatogram of  the Assay preparation corresponds to that in the chromatogram of the standard preparation, as obtained in the assay.

B. Positive

Acidity or alkalinity

A solution of 100 mg in 5 mL of neutralized

70% alcohol is neutral to litmus.

Complies

Melting point

169~175℃

170-171℃

Loss on drying

Not more than 0.5%

0.11%

Residue on ignition

Not more than 0.05%

0.02%

Residual Solvent

Pyridine≤200ppm

Complies


Tetahydrofuran≤720ppm

Complies


Ethanol≤500ppm

Complies

Assay

97.0%-100.5%(C18H20O2)

calculated on the dried basis

99.6%


Category: New products


«
Offline Showroom in USA
QR Code