About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsPharma Raw Material

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2
High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2 High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2

Large Image :  High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2

Product Details:
Place of Origin: China
Brand Name: LIHE
Certification: ISO,GMP
Model Number: 516-55-2
Payment & Shipping Terms:
Minimum Order Quantity: 1KG
Price: 30USD/Kg
Packaging Details: 15KG/Drum
Delivery Time: 3-5days
Payment Terms: MoneyGram, Western Union, T/T, L/C
Supply Ability: 10000kg/month
Detailed Product Description
Color: White MF: C21H34O2
MW: 318.49 EINECS: 208-224-2
High Light:

3β -Hydroxy-5α -Pregnan-20-One


99% Allopregnanolone


Pharma Raw Material 516-55-2

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS516-55-2 with Best Price


ALLOPREGNANOLONE Basic information
Description Properties Discovery Biological functions Uses Clinical implications Regulation of synthesis and release
Synonyms: 3-beta-allopregnanolone;3-beta-hydroxy-5-alpha-pregnan-20-on;3-hydroxy-,(3-beta,5-alpha)-pregnan-20-on;3-Hydroxypregnan-20-one;5alpha-Pregnan-20-one, 3beta-hydroxy-;5alpha-Pregnane-3beta-ol-20-one;Allopregnan-3beta-ol-20-one;Allopregnane-3beta-ol-20-one
CAS: 516-55-2
MF: C21H34O2
MW: 318.49
EINECS: 208-224-2
ALLOPREGNANOLONE Chemical Properties
Melting point 200℃
alpha D27 +91.2° (c = 0.4 in ethanol)
Boiling point 431.2±18.0 °C(Predicted)
density 1.1 g/cm3
storage temp. Refrigerator
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka 15.12±0.70(Predicted)
color White to Off-White




Isopregnanolone is used in the preparation of antimicrobial and anti-leukemic ste roids. Intermediate.



The presence of a progestational compound in the rabbit adrenal gland was reported in 1933, and was isolated in 1938 from the ox adrenal gland.Allopregnanolone formation was demonstrated in the brains of various vertebrates2–5 and the pineal glands of birds.



Clinical implications

Decreased production of allopregnanolone leads to NP-C; thus allopregnanolone treatment may be useful in ameliorating progression of the disease.In patients with Alzheimer’s disease, the level of allopregnanolone in the temporal cortex was significantly lower than controls, in contrast to pregne nolone and dehydroe piandrosterone where the concentrations were increased.This may be explained by altered regulation of the neurosteroid biosynthetic pathway, which blocks allopregnanolone formation.



Fastest delivery! Top quality! Top purity!

Manufacturer supply! Door to Door service !

Safe shipping and customs clearence for you!

Product pictures

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2 1

High quality with competitive price.

All purity>99%


We are manufacturer and can provide high quality products with factory price.


Hot products


CAS Product Name Purity
5337-93-9 4'-Methylpropiophenone 99%
2079878-75-2 2-(2-Chlorophenyl)-2-nitrocyclohexanone 99%
79099-07-3 N-(tert-Butoxycarbonyl)-4-piperidone 99%
1193389-70-6 (4-Fluoro-phenyl)-piperidin-4-yl-amine 99%
1009-14-9 Valerophenone 99%
5413-05-8 Ethyl 2-phenylacetoacetate 99%
1451-82-7 2-bromo-4-methylpropiophenone 99%
49851-31-2 2-BROMO-1-PHENYL-PENTAN-1-ONE 99%
20320-59-6 Diethyl(phenylacetyl)malonate 99%




Arrived successfully

High Purity 99% 3β -Hydroxy-5α -Pregnan-20-One CAS 516-55-2 2



Company profile:

Lihe Pharm Technology (Wuhan) Co., Ltd. has a registered capital of 3 million yuan, and our products have a great price advantage in Europe and South America. We are an experienced manufacturer of various apis, pharmaceutical intermediates, organic and inorganic chemicals. We provide samples to test the quality as a trial order, because I have confidence in the quality of our products, many foreign customers, received our goods will be consistent praise.


1. Through safe and fast freight distribution to all parts of the world (sea, land, air) home delivery, delivery within 3-5 days, we promise 100% delivery, if the package is not delivered, 100% redelivery or refund!

2. We have a group of high-quality engineers and experts to provide guidance for reagents, when you meet problems in the process of mineral processing, we can provide technical guidance.

3. Payment method :WU, T/T, Moneygram, Bitcoin Alibaba Gold member with high credit guarantee.

4. We double clear package tax, accept sample orders, can also provide sample test welcome to consult, we will give you a super cheap price.




1: How to start orders or make payments?

You can send your Purchase order, or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma

Invoice with our bank details for your confirmation, then you can make payment accordingly.

2: How to make the payment?

We can accept Bitcoin, Western Union, MoneyGram,PayPal, etc.

3: What's your MOQ?

For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts

from 100g and 1kg.

4: When will you deliver the goods?

If we have inventory, generally we can arrange shipment after receipt of payment 2 to 3 days. If not, it will be decided by the

time of the factory production.





Wickr me: resse5724
Whats App: /Skype: +8618186115724




Contact Details

Contact Person: Resse

Tel: +8618186115724

Send your inquiry directly to us (0 / 3000)