Maintenance Notice (8:00 - 10:30 AM February 15, 2026): The website is scheduled for maintenance. The website will be available, but some functions may experience errors. We appreciate your patience and understanding.
Product Document Searching Made Easy by 2D Code! | [Product Highlights] rac-GR24: A Standard Tool for ...
Maximum quantity allowed is 999
Please select the quantity
CAS RN: 90-31-3 | Product Number: C3919
2-(3-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one
×
Purity: >98.0%(T)(HPLC)
Chemical Substance Law (ENCS):
5-302
Synonyms:
- 1-(3-Chlorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one
- 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one
- 1-(3-Chlorophenyl)-3-methyl-5-pyrazolone
Product Documents:
| Size | Unit Price | Saitama (Kawaguchi) | Hyogo (Amagasaki) | Stock in other WH |
Shipping Information
|
|---|---|---|---|---|---|
| 1G |
¥4,800
|
18 | It can be shipped from Saitama warehouse on the same day* | Contact Us | |
| 5G |
¥16,800
|
20 | It can be shipped from Saitama warehouse on the same day* | Contact Us |
* Available Stock: Prompt shipment (for products) in Saitama/Hyogo warehouse. Stock In Other WH: Shipment in about 2-3 Business Days from Saitama warehouse. Please contact us
if you need further information.
* The displayed price is the unit price and does not include consumption tax. The unit prices displayed are the latest and are subject to change without notice.
* To send your quote request for bulk quantities, please click on the "Request Bulk Quote" button. Please note that we cannot offer bulk quantities for some products.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.
* The displayed price is the unit price and does not include consumption tax. The unit prices displayed are the latest and are subject to change without notice.
* To send your quote request for bulk quantities, please click on the "Request Bulk Quote" button. Please note that we cannot offer bulk quantities for some products.
*TCI frequently reviews storage conditions to optimize them. Please note that the latest information on the storage temperature for the products is described on our website.
| Product Number | C3919 |
Purity / Analysis Method 
|
>98.0%(T)(HPLC) |
| Molecular Formula / Molecular Weight | C__1__0H__9ClN__2O = 208.65 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Air Sensitive |
| Packaging and Container
|
1G-Glass Bottle with Plastic Insert (View image) |
| CAS RN | 90-31-3 |
| Reaxys Registry Number | 611641 |
| MDL Number | MFCD00020750 |
Specifications
| Appearance | White to Light yellow powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Nonaqueous Titration) | min. 98.0 % |
| Melting point | 130.0 to 134.0 °C |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 132 °C |
GHS
Related Laws:
| Chemical Substance Law (ENCS) |
5-302 |
Transport Information:
Product Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.
The requested SDS is not available.
Please Contact Us for more information.
Specifications
C of A & Other Certificates
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
Sample C of A
This is a sample C of A and may not represent a recently manufactured lot of the product.
A sample C of A for this product is not available at this time.
Analytical Charts
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
The requested analytical chart is not available. Sorry for the inconvenience.