Cl-HOBt CAS 26198-19-6 6-Chloro-1-Hydroxybenzotriazole Dihydrate Purity >99.0% (HPLC) Factory
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of 6-Chloro-1-Hydroxybenzotriazole Dihydrate (Cl-HOBT) (CAS: 26198-19-6) with high quality. Ruifu Chemical supplys a series of protecting reagents and coupling reagents. Ruifu can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase Cl-HOBT, Please contact: alvin@ruifuchem.com
Chemical Name | 6-Chloro-1-Hydroxybenzotriazole Dihydrate |
Synonyms | Cl-HOBt; 6-Cl-HOBt; HOBt(6-Cl); 6-Chloro-1H-Benzotriazol-1-ol; 6-ChloroBenzotriazole-1-ol; 6-Chloro-1-Hydroxy-1H-Benzotriazole; 1-Hydroxy-6-Chlorobenzotriazole; 1-Hydroxy-6-Chloro-Benzotriazole; 6-Chloro-1H-benzo[d][1,2,3]triazol-1-ol |
Stock Status | In Stock, Mass Production |
CAS Number | 26198-19-6 |
Molecular Formula | C6H4ClN3O·2H2O |
Molecular Weight | 205.60 g/mol |
Melting Point | 193.0~200.0℃ |
Density | 1.71±0.10 g/cm3 |
Storage Temp. | Cool & Dry Place (2~8℃) |
COA & MSDS | Available |
Category | Coupling Reagents |
Brand | Ruifu Chemical |
Items | Inspection Standards | Results |
Appearance | White Powder | White Powder |
Melting Point | 193.0~200.0℃ | 194.9~195.8℃ |
Water by Karl Fischer | <10.0% | Complies |
Purity / Analysis Method | >99.0% (HPLC) | 99.9% |
Infrared Spectrum | Conforms to Structure | Complies |
1 H NMR Spectrum | Conforms to Structure | Complies |
Conclusion | The product has been tested & complies with the given specifications |
Package: Bottle, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Store in sealed containers at cool and dry (2~8℃) warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide by FedEx / DHL Express. Provide fast and reliable delivery.
Caution: For safe storage and transport the material was desensitized with two equivalents of water.
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.
Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.
Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.
Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.
Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers.
Factory Audit? Factory audit welcome. Please make an appointment in advance.
MOQ? No MOQ. Small order is acceptable.
Delivery Time? If within stock, three days delivery guaranteed.
Transportation? By Express (FedEx, DHL), by Air, by Sea.
Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.
Custom Synthesis? Can provide custom synthesis services to best fit your research needs.
Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.
Risk Codes
R22 - Harmful if swallowed
R44 - Risk of explosion if heated under confinement
R36/37/38 - Irritating to eyes, respiratory system and skin.
R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R2 - Risk of explosion by shock, friction, fire or other sources of ignition
Safety Description
S15 - Keep away from heat.
S36 - Wear suitable protective clothing.
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S35 - This material and its container must be disposed of in a safe way.
UN IDs UN 1325 4.1/PG 2
6-Chloro-1-Hydroxybenzotriazole Dihydrate (Cl-HOBt; 6-Cl-HOBt) (CAS: 26198-19-6) is a reagent to suppress racemization in peptide coupling, which is not toxic. Reagent in peptide synthesis, has also been introduced into solid-phase synthesis.
6-Cl-HOBt is an alternative to HOBt. The chlorine atom attached to the ring increases the acidity and the effectiveness as a leaving group of 6-Cl-HOBt compared to HOBt. Like HOBt, 6-Cl-HOBt efficiently suppresses racemization during coupling. Cl-HOBt can be used in place of HOBt with equal or superior results. 6-Cl-HOBt increases the efficiency of carbodiimode mediated reactions by generating an active ester that prone for Amidation.
6-Cl-HOBt is a good compromise between HOAt and HOBt in terms of reactivity and price.