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Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6

Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6

  • Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6
  • Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6
Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6
Product Details:
Place of Origin: China
Brand Name: Pharmlab
Certification: ISO 9001, USP,GMP
Model Number: 2919-66-6
Payment & Shipping Terms:
Minimum Order Quantity: 10g
Price: negotiable
Packaging Details: Well disguised package with safe new shipping method;As requested.
Delivery Time: Shipment within 24 hours, 3 to 5 days arrived
Payment Terms: Western Union, MoneyGram, T/T, Bitcoin
Supply Ability: Mass in stock
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Detailed Product Description
Product Name: Melengestrol Acetate CAS: 2919-66-6
Appearance: Light Yellow Crystalline Powder Grade: Pharmaceutical Grade
MF: C25H32O4 MW: 396.52
Assay: 98% Shipping: EMS,HKEMS,FEDEX,DHL,TNT,Aramex,etc
High Light:

raw test powder


raw pharmaceutical materials

Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer Without Side Effect




Product Details:

Name:Melengestrol Acetate


Export Markets:Global





Origin:Wuhan, China


Production Capacity:200kg/Month

Assay: 98%

Packaging: 1kg/bag

Molecular Formula: C25H32O4

Molecular weight: 396.52

Appearance: Light yellow crystalline powder


Payment: T/T, Western Union and Money Gram


Certification: GMP, HSE, ISO 9001, USP, BP


Delivery: Within 24hours After Your Payment





Melengestrol acetat is widely used as a growth promoting feed additive in cattle breeding in the USA and several other non-European countries. To explore the physiological effects of MGA four heifers were fed during 8 weeks with 0.5 mg MGA daily as registered in the USA and two heifers each received 0, 1.5 or 5 mg/day, respectively. Plasma samples were collected twice a week and concentrations of MGA, progesterone and estradiol-17beta were quantified. The pulsatile secretion of luteinizing hormone was investigated in 6-hour profiles before and during treatment. After slaughter the reproductive organs were examined and oestrogen residues in edible tissues were measured.


Four days after the beginning of MGA feeding MGA concentrations in plasma reached levels of 30 and 100-400 pg/mL depending on the dose received. Three weeks after the beginning of MGA feeding P4 plasma concentrations had dropped to base levels below 0.3 ng/mL in all three treatment groups. Mean plasma E2-17beta levels increased in physiological range from 1 to 5 pg/mL during 0.5 mg MGA/day feeding with many acyclic peaks. Overdosed MGA decreased E2 levels and suppressed cyclic peaks. Number and size of ovarian follicles were not altered by any treatment. Mean LH levels and pulse frequencies increased significantly during labelled treatment , while higher doses had reducing effects. The development of corpus luteum was suppressed. E2-17beta residues in fat increased about 300% following labelled MGA treatment.




To investigate the relation of ovarian morphology to increased body weight gain during administration of melengestrol acetate, ovaries of 100 Holstein dairy heifers were examined for characteristics of follicular maturation, signs of lipid secretion, and the presence of steroid-producing-type cell organelles. The heifers were fed either a normal or a high-protein level ration with or without 0.30–0.45 mg daily of MGA from 2.5 months of age to the age of first estrus or to breeding age. The high-level ration effect was not consistently mediated by the special development of ovarian structures.


MGA effect, like the weight-gain effect, was consistently evident after the time of first estrus. MGA suppressed estrus and ovulation, and resulted in the presence in the ovary, after regression of corpora lutea, of an increased number of large follicles. The largest follicles corresponding in structure to developing proestrous, mature estrous, or early atretic follicles contained hypertrophied theca interna cells showing lipid secretion signs and ultrastructural characteristics of steroid synthesis. The majority of the largest follicles, however, were atretic or late atretic and did not contain steroid-type cells. The development of replacement follicles was evident in ovaries with late atretic largest follicles. The weight-gain effect of MGA may therefore be associated with a steroidogenic, probably estrogenic, effect in the cow.

Melengestrol Acetate Raw Steroid Powders Light Tan Solid For Anti Cancer , CAS 2919-66-6 0



Competitive Advantage


1. Our company is a professional production leading factory in China in pharmaceutical area of many years.


Delivery areas of our products: US, UK, Canada, Australia, Brazil, Russia, Portugal, Latvia, Switzerland, Iceland, Ukraine, Germany, France, Netherlands, Belgium, Peru, Sweden, New Zealand, the Czech Republic, Lithuania, Ireland, Tunisia, Mexico, Greece, Puerto Rico, Thailand, Israel and so on.


Payment method: T/T, Western union, Moneygram, bitcoin etc.


2. Discreet package. The packing suits you best would be choosen to cross customs safely. Or if you have your own ideal way, it could be also take into consideration.


3. Top quality. High quality guarenteed, once any problem is found, the package would be reshipped for you.


4. Security Shipping: Shipping by express (FedEx, UPS, DHL, EMS), by air. The most professional forwarder would be recommanded for you.


5. We have stock, so we can delivery quickly at the very day when receive the payment.


6. Warm after-sale service for you 24/7. Any of your question would be solved for the first as soon as possible.


7. A discount would be given when you make a large order.



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