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CAS RN: 71-58-9 | Product Number: M1964

Medroxyprogesterone Acetate

Purity: >93.0%(GC)
  • Medroxyprogesterone 17-Acetate
  • 17α-Acetoxy-6α-methylprogesterone
  • 17α-Hydroxy-6α-methyl-4-pregnene-3,20-dione 17-Acetate
2   ≥20 
8   ≥20 

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Product Number M1964
Purity / Analysis Method >93.0%(GC)
Molecular Formula / Molecular Weight C__2__4H__3__4O__4 = 386.53  
Physical State (20 deg.C) Solid
CAS RN 71-58-9
Reaxys Registry Number 2066112
PubChem Substance ID 87560200
MDL Number


Appearance White to Almost white powder to crystal
Purity(GC) min. 93.0 %
Melting point 203.0 to 209.0 °C
Specific rotation [a]20/D +45.0 to +51.0 deg(C=1, Dioxane)
Properties (reference)
Melting Point 206 °C
Specific Rotation 48° (C=1,Dioxane)
Solubility in water Insoluble
Solubility (very soluble in) Chloroform
Solubility (soluble in) Dimethylformamide
Solubility (slightly sol. in) Alcohol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H351 : Suspected of causing cancer.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P202 : Do not handle until all safety precautions have been read and understood.
P201 : Obtain special instructions before use.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P308 + P313 : IF exposed or concerned: Get medical advice/ attention.
P405 : Store locked up.
Related Laws:
EC Number 200-757-9
RTECS# TU5010000
Transport Information:
HS Number 2937290000
Medroxyprogesterone acetate: Semi-Synthetic Progestational Agent

Medroxyprogesterone acetate (MPA) and megestrol acetate [M1949], semi-synthetic progestational agents, are effective hormonal treatments for metastatic breast cancer in postmenopausal women. The antineoplastic effect may result from inhibition of pituitary gonadotropin production and resultant decrease in estrogen secretion. In addition, MPA has the pregnancy maintaining effect and the anti-estrogen effect. (The product is for research purpose only.)


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