China (Mainland)
High quality 1,3,5(10)-Estratrien-3-ol-17-one CAS NO.53-16-7
- FOB Price: USD: 1.00-1.00 /Kilogram Get Latest Price
- Min.Order: 1 Kilogram
- Payment Terms: L/C,D/A,D/P,T/T,
- Available Specifications:
1(1-2)Kilogram
- Product Details
Keywords
- 1,3,5(10)-Estratrien-3-ol-17-one
- 53-16-7
- 1,3,5(10)-Estratrien-3-ol-17-one
Quick Details
- ProName: High quality 1,3,5(10)-Estratrien-3-ol...
- CasNo: 53-16-7
- Molecular Formula: C18H22O2
- Appearance: White powder
- Application: Used
- DeliveryTime: 3 days
- PackAge: sample package
- Port: Qingdao Port
- ProductionCapacity: 1000 Kilogram/Week
- Purity: 99%
- Storage: dry and cool
- Transportation: By air
- LimitNum: 1 Kilogram
- Shelf life: 2 years
- Application: Cosmetic Ingredient
Superiority
1.Reasonable price:
We provide high quality products with competitive price in china,
2.Low moq:
No worry about the low moq, our moq is 1 gram or lower.
3.Good and efficient service,Fast Delivery
Fast respond save client's time, we promise to reply inquiry in 24 hours including holidays and send quotation sheet and other documents in 48 hours.
4.Super-good quality
We have strict quality control system .Good reputation in Market
Contact us
If you have any further questions or need a sample,Please do not hesitate to contact us.
Leah| Senior Sales | Qingdao Sigmachemical Co.,Ltd
| Address:No 70,Shandong Road,Qingdao city,China
Details
Specifciation:
1.Competitive price
2.Fast Delivery Within 2 days
3.SGS , BV, GMP,ISO approve
4.Professional factory
Product Description
estrone is an odorless, solid crystalline powder, white in color with a melting point of 254.5 °c and a specific gravity of 1.23.estrone is one of several natural estrogens, which also include estriol and estradiol.
estrone is the least abundant of the threehormones; estradiol is present almost always in the reproductive female body, and estriol is abundant primarily duringpregnancy.
Certification of Analysis
|
items |
standard |
result |
|
appearance |
white or almost white crystalline powder |
white crystalline powder |
|
identification |
the ir spectrum of sample complies white that of reference standard |
conforms |
|
uv: the minimum and maximum absorption value of test solution should be conforms to that of reference solution |
conforms |
|
|
clarity of solution |
solution is clear |
conforms |
|
specific rotation |
+158.0 to +165.0 |
+160.0 |
|
loss on drying |
≤0.5% |
0.1% |
|
residue on ignition |
≤0.5% |
0.1% |
|
related substance |
≤2.0% |
conforms |
|
assay |
97.0-103.0% |
97.8% |
|
residual solvents |
acetone ≤5000ppm |
not detected |
|
ethanol ≤5000 |
1317ppm |
|
|
ethyl acetate≤5000pm |
not detected |
|
|
bebzene ≤2ppm |
not detected |
|
|
conclusion |
meet the above specification |
Function&Application
estrone is known to be a carcinogen for human females as well as cause breast tenderness or pain, nausea, headache, hypertension, and leg cramps. in men, estrone has been known to cause anorexia, nausea, vomiting, and erectile dysfunction.
2.Fast Delivery Within 3 days
3.SGS,BV,GMP,ISO approve
4.Professional factor
The aim of Sigma is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
Sigma has become the "Top 500 Chinese manufactur
Our Services
FAQ
Q1: Are you a manufacturer
Answer: Yes, we are factory founded on 2002.
Q2: How to contact with us
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Which kind of payment terms do you accept
For small order,you can pay by T/T, or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price
Surely,It depend on your qty
Q5:How can i get a sample
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q7:How do you treat quality complaint
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
If you are interested,welcome to contact with us.
Pls send message if you are interested,click "send" as below ^.^
