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1 Kilogram |
Negotiable |
N-Hydroxysuccinimide price 6066-82-6 N-Hydroxysuccinimide N-Hydroxysuccinimide 98
N-Hydroxysuccinimide price 6066-82-6 98
use
Additives in improved alamide and peptide coupling reactions using carbon diamine methods, and for activating carbapenems when the acetamine bond is formed for synthetic amino acid protectors, semi-synthetic carnamycin and pharmaceutical intermediates.
Production method
Heating 100g (1.0mol) butyl diazepam and 70g (1.0mol) hydrochloride together allows the reaction system to maintain negative pressure to remove the resulting volatiles, heating up quickly to more than 125 degrees C, and slowly rising to 160 degrees C after 1h. Stop heating and when the temperature drops to 125 degrees C, pour the liquid reactant into 400 ml of ether and stir vigorously. The product cures and pours away the ether layer, the curing material and 400 ml butanol are heated to boil, the heat filter, the filter fluid is quickly cooled to 0 degrees C. 1h after filtration, crystallization in turn with butanol, ether washing, the resulting crude products with ethyl acetate recrystallization, 50g finished products, yield 44%.
RFQ:
Q1: Have your product quality been approved by third party?
Yes,all products are strictly tested by our QC,and approved by third party like SGS.
So we can gurantee the good quality.
Q2: Do you accept sample order?
Yes,we could suppliy different scale of samples for your evaluation quality.
Q3: Is free samples avalibale?
Yes,free sample could be provided,but shipping cost will be paid by customers.
Q4: How long will you deliver the goods on board?
7-10 days after order confirmation.
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