成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
+1 (818) 612-2111
Inquriy
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

RFQ
skype
MY Account
Top
Postion:Product Catalog >API>Respiratory Drugs>Asthma drugs>Theophylline
Theophylline
  • Theophylline
  • Theophylline
  • Theophylline
  • Theophylline

Theophylline NEW

Price $20
Package 1kg
Min. Order: 1kg
Supply Ability: 500tons
Update Time: 2024-04-12

Product Details

Product Name: Theophylline CAS No.: 58-55-9
EC-No.: 200-385-7 Min. Order: 1kg
Purity: 99.9% Supply Ability: 500tons
Release date: 2024/04/12

Chinese name: theophylline

English name: Theophylline

CAS: 58-55-9

EINECS number: 200-385-7

Molecular formula: C7H8N4O2

MDL number: MFCD00079619

Molecular weight: 180.16

category

Biological chemicals: Biochemical reagents: alkaloids

Appearance: white crystal or crystalline powder, odorless, bitter taste. Mp270-274 ° C. Soluble in water (1:120), ethanol (1:18), chloroform (1:86), lye hydroxide, ammonia, dilute hydrochloric acid and dilute nitric acid at room temperature, slightly soluble in ether. Moderately toxic, LD50(rat, oral)300mg/kg.

Melting point: 271-273 °C

Melting point: 271-273 °C

Boiling point: 312.97°C (rough estimate)

Density: 1.3640 (rough estimate)

Refractive index: 1.6700 (estimate)

Flash point: 11 °C

Storage conditions: 2-8°C

Storage conditions: 2-8°C

Solubility: 0.1M HCl: soluble

Solubility: Soluble in 0.1MHCl

Acidity coefficient (pKa) : 8.77(at 25℃)

Form: powder

Color: white

Water solubility: 8.3g /L (20 oC)

Merck: 14,9285

Merck: 9285

BRN: 13463

BCS Class: 3,1

Stability: Stable. Incompatible with strong oxidants.

InChIKey: ZFXYFBGIUFBOJW-UHFFFAOYSA-N

LogP: -0.020

use

Methylpurines. It can strengthen the heart, diuresis, dilate coronary artery, relax bronchial smooth muscle and stimulate the central meridian system. Mainly used for the treatment of bronchial asthma, emphysema, bronchitis, cardiac dyspnea.


Company Profile Introduction

-WUHAN BOYUAN IMPORT & EXPORT CO.,LTD.. is specialized in R&D, manufacturing and marketing APIS, Food Additives,Inorganic Chemicals,Organic Intermediate,Health Care Products,Feed Additives,Chemical Reagents,Daily Chemicals etc.More than 70 percent products are exported to Europe, America, Japan and Southeast Asia. In the past years, WUHAN BOYUAN IMPORT & EXPORT CO.,LTD. has established its professional team and advanced managements, excels in product sourcing and customized products. WUHAN BOYUAN IMPORT & EXPORT CO.,LTD. has built close collaborations with several well-known institutes in China. Development of new fine chemical, custom synthesis has been a significant part of our chemical's production. The essence of our business is commitment to customer service by meeting and/or exceeding our client's expectations of cost, quality, and efficient service. We are confident that our competitive edge will provide the foundation ensure for our customers to be successful in their own market areas. Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force

You may like

Recommended supplier

Product name Price   Suppliers Update time
$41.00/500mg
VIP3Y
TargetMol Chemicals Inc.
2024-11-14
$41.00/500mg
VIP5Y
TargetMol Chemicals Inc.
2024-11-14
$0.00/1kg
VIP1Y
BINBO BIOLOGICAL CO.,LTD
2024-11-05
$1.00/1ASSAYS
VIP4Y
Dorne Chemical Technology co. LTD
2024-06-27
$10.00/1kg
VIP1Y
Hebei Ganmiao New material Technology Co., LTD
2024-06-06
$150.00/1kg
VIP1Y
Shijiazhuang Jianxin Biotechnology Co., LTD
2024-05-16
$10.00/1kg
Nanjing Deda New Material Technology Ltd.
2024-04-23
$9.00/1gram
VIP1Y
Hebei Kangcang new material Technology Co., LTD
2024-04-17
$0.00/1g
VIP1Y
airuikechemical co., ltd.
2024-04-11
$35.00/1kg
VIP1Y
Sigma Audley
2024-03-14
  • Since: 2014-04-18
  • Address: Hong Kong
INQUIRY
mike
+86-15175982296
Mike@whby-chem.com