1, 8-diazadicyclic [5.4.0] undecane 7-ene referred to as DBU, is a double heterocyclic structure of amidine, colorless or light yellow liquid at room temperature, soluble in water and ethanol, acetone and other organic solvents, generally less than 30℃Chemicalbook storage. As a strong organic base with unique structure, it has been applied in many synthesis reactions, showing the catalytic effect that other strong bases are difficult to play, and has the characteristics of mild reaction conditions, simple synthesis steps, specific product selectivity and high yield.
Nature:
1, appearance and properties: is a colorless, transparent liquid. It has a strong ammonia taste and is highly hygroscopic.
2, solubility: soluble in many common organic solvents, such as ethanol, ether, chloroform and dimethylformamide.
3, stability: It is stable and can be stored for a long time at room temperature.
4, combustibility: it is flammable, pay attention to avoid contact with the fire source.
1, 8-diazadicyclic [5.4.0] undeca-7-ene is an excellent dehydrating agent, epoxy resin hardener, rust inhibitor, and can be formulated as an advanced corrosion inhibitor. A catalyst that can be used for the production of polyaminoethyl ester and other chemicals, such as ammonia and dichloroethane in the presence of a Chemicalbook reaction to produce piperazine. It is widely used in the production of semi-synthetic antibiotics of cephalosporin. It is a resin curing accelerator, especially for the outer sealing resin of integrated circuits and electronic components; Dehalogenation reaction, dimerization and trimer dehalogenation reaction; Desulfonic acid, denitric acid reaction in polymerization process.
Purpose:
1, catalyst: is a strong base, commonly used as a base catalyst in organic synthesis, especially in condensation reaction, substitution reaction and cyclization reaction.
2, ion exchanger: can form salts with organic acids, and used as anion exchangers, often used in organic synthesis and analytical chemistry.
3, chemical reagents: often used in organic synthesis of hydrogenation reaction, deprotection reaction and strong base catalyzed amine substitution reaction.
ພວກເຮົາມີໂຮງງານທີ່ມີຄຸນນະພາບສູງຫຼາຍທີ່ມີການຮ່ວມມືຢ່າງເລິກເຊິ່ງ, ເຊິ່ງສາມາດໃຫ້ທ່ານຜະລິດຕະພັນທີ່ມີຄຸນນະພາບສູງແລະລາຄາທີ່ແຂ່ງຂັນ. ແລະພວກເຮົາຍັງສາມາດໃຫ້ສ່ວນຫຼຸດສໍາລັບການຊື້ຈໍານວນຫລາຍ.ແລະພວກເຮົາຮ່ວມມືກັບບໍລິສັດຂົນສົ່ງສິນຄ້າມືອາຊີບຈໍານວນຫຼາຍ, ສາມາດຈັດສົ່ງຜະລິດຕະພັນໄດ້ຢ່າງປອດໄພແລະກ້ຽງກັບມືຂອງທ່ານ. ເວລາສົ່ງແມ່ນປະມານ 3-20 ມື້ຫຼັງຈາກຢືນຢັນການຈ່າຍເງິນ.
1. ເຈົ້າເປັນໂຮງງານຫຼືບໍລິສັດການຄ້າບໍ?
ພວກເຮົາແມ່ນ compnay ອຸດສາຫະກໍາປະສົມປະສານແລະການຄ້າ, ການສະຫນອງການບໍລິການທີ່ຢຸດດຽວ.OEM ສາມາດໄດ້ຮັບການຍອມຮັບ.
2. ເຈົ້າໃຫ້ຕົວຢ່າງບໍ? ມັນບໍ່ເສຍຄ່າຫຼືພິເສດບໍ?
ຕົວຢ່າງຟຣີ.ຄ່າທໍານຽມການຂົນສົ່ງຂອງຕົວຢ່າງຈໍາເປັນຕ້ອງຈ່າຍໂດຍຂ້າງຂອງທ່ານ.
3. ທ່ານມີໃບຢັ້ງຢືນທີ່ກ່ຽວຂ້ອງກັບການຄວບຄຸມຄຸນນະພາບບໍ?
ການຢັ້ງຢືນ ISO 9001: 2008 ເພື່ອຮັບປະກັນຄຸນນະພາບ.
4. ຂ້ອຍຄວນຈັດຫາຫຍັງເພື່ອໃຫ້ໄດ້ໃບສະເໜີລາຄາ?
Pls ແຈ້ງພວກເຮົາກ່ຽວກັບປະເພດຜະລິດຕະພັນທີ່ທ່ານຕ້ອງການ, ຈໍານວນການສັ່ງຊື້, ທີ່ຢູ່ແລະຄວາມຕ້ອງການສະເພາະ.
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