3,5-Difluoropyridine
|
|
3,5-Difluoropyridine 속성
- 끓는 점
- 92-93°C
- 밀도
- 1.256 g/mL at 25 °C
- 굴절률
- 1.4437
- 인화점
- 9°C
- 저장 조건
- under inert gas (nitrogen or Argon) at 2-8°C
- 물리적 상태
- 투명한 액체
- 산도 계수 (pKa)
- 0.39±0.20(Predicted)
- 색상
- 무색 내지 거의 무색
- BRN
- 7914363
- InChIKey
- WRXAZPPGFLETFR-UHFFFAOYSA-N
- CAS 데이터베이스
- 71902-33-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi,F,N,Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37/38-50-20/21/22-11 | ||
| 안전지침서 | 26-36/37/39-61-36/37 | ||
| 유엔번호(UN No.) | 1993 | ||
| WGK 독일 | 3 | ||
| 위험 참고 사항 | Highly Flammable/Irritant | ||
| 위험 등급 | 3 | ||
| 포장분류 | II | ||
| HS 번호 | 29333990 |
3,5-Difluoropyridine C화학적 특성, 용도, 생산
화학적 성질
Liquid제조 방법
Synthesis of 3,5-Difluoropyridine: A solution of 2,4,6-tribromo-3,5-difluoropyridine (11) (34.0 g, 97 mmol) in DCM (200 cm3) was washed with activated carbon and filtered. A palladium catalyst (3.4 g of a 5% Pd/C commercially available product) and triethylamine (45 cm3, 31.5 g, 312 mmol) were added to the filtrate and the mixture hydrogenated in a Parr apparatus at 4 Bar for 21 h. The mixture was filtered, water (200 cm3) added and extracted into DCM. Distillation of the DCM solution on Fischer-Spaltrohr apparatus gave 3,5-difluoropyridine (7.0 g, 61 mmol, 63%), b.p. 92.5 ·c (Found: C, 52.2; H, 3.0; N, 12.2. C5H3F2N2 requires C, 52.2; H, 3.0; N, 12.2%);IR spectrum no. 1; mass spectrum no. 1; nrnr spectrum no. 8.
3,5-Difluoropyridine 준비 용품 및 원자재
원자재
준비 용품
3,5-Difluoropyridine 공급 업체
글로벌( 190)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Dongfan Chem. Co., Ltd. | 021-34500607 13391355195 |
sales@dfanchem.com | CHINA | 61 | 55 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 |
sales@alchempharmtech.com | United States | 63711 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49390 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 |
joe@yuhengpharm.com | CHINA | 21149 | 58 |
| Allfluoro pharmaceutical co. ltd. | 021-26137118 +8615821363818 |
sales@allfluoro.com | China | 5791 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 |
eric@witopchemical.com | China | 23556 | 58 |
3,5-Difluoropyridine 관련 검색:
2,6-루티딘 2,5-피리딘디카르복시산 디플로로피리딘(2,6-) 오불화피리딘 3,5-다이클로로-2,6-다이플루오로피리딘-4-아민
DIPIPERIDINOMETHANE
Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate
4-(DIMETHYLAMINO)-2,3,5,6-TETRAFLUOROPYRIDINE
2,3,5,6-Tetrafluoropyridine
2 3 5 6-TETRAFLUORO-4-METHYLPYRIDINE 9&
2,3,5,6-TETRAFLUORO-4-PYRIDINE-CARBONITRILE
2,3-DIFLUOROPYRIDINE
2,5-DIFLUOROPYRIDINE
4-AMINO-2,3,5,6-TETRAFLUOROPYRIDINE
3,4-DIBROMO-2-FLUOROPYRIDINE
5,6-Difluoropyridine-2-carboxylic acid
2,6-DIBROMO-3,5-DIFLUOROPYRIDINE-4-CARBOXYLIC ACID
2,6-DIFLUOROPYRIDINE-3-BORONIC ACID HYDRATE