DL-Phenylalanine

DL-Phenylalanine 속성

DL-Phenylalanine MSDS

DL-Phenylalanine

DL-Phenylalanine C화학적 특성, 용도, 생산

순도시험

  (1)　납 : 이 품목 5.0g을 취하여 원자흡광광도법 또는 유도결합라즈마발광광도법에 따라 시험할 때, 그 양은 5.0ppm 이하이어야 한다.

확인시험

  (1) 이 품목의 수용액(1→1,000) 5mL에 닌히드린시액 1mL를 가하여 가열하면 자색을 나타낸다.

  (2) 이 품목의 수용액(1→100) 5mL에 중크롬산칼륨시액 몇 방울을 가하여 가열하면 특유한 냄새가 난다.

  (3) 이 품목 10mg에 질산칼륨 0.5g 및 황산 2mL를 가하여 수욕상에서 20분간 가열한 다음 식히고 히드록실아민시액 2mL를 가하여 얼음물 중에 10분간 방치한 다음 즉시 수산화나트륨시액 10mL를 가하여 방치하면 자색을 나타낸다.

정량법

  이 품목을 105℃에서 2시간 미리 건조한 다음 약 0.5g을 정밀히 달아 빙초산(비수적정용) 70mL를 가하여 녹이고 0.1N 과염소산용액으로 적정한다(지시약 : 크리스탈바이올렛․빙초산시액 2방울). 종말점은 액의 자색이 청색을 지나 녹색으로 변하는 점이다. 따로 같은 방법으로 공시험을 한다.

0.1N 과염소산용액 1mL ＝ 16.52mg C₉H₁₁NO₂

강열잔류물

  이 품목 1g을 취하여 강열잔류물시험법에 따라 시험할 때, 그 양은 0.3% 이하이어야 한다.

화학적 성질

DL-Phenylalanine has a sweet taste. It is an essential amino acid that plays a key role in the biosynthesis of other amino acids and some neurotransmitters.

출처

Phenylalanine is the most commonly found aromatic amino acid in proteins and enzymes with a molar ratio of 3.5% compared to the other amino acids, about double the amount of any other aromatic amino acid. Reported found in white bread, macaroni, egg noodles, corn flakes, corn grits, oatmeal, wheat bran, wheat flakes, shredded wheat, barley, brown rice, rye flour, whole grain wheat flour, buttermilk, blue cheese, cheddar cheese, cottage cheese, cream cheese, parmesan cheese, bacon, cured ham, frankfurters, pork sausage, canned red kidney beans, canned sweet corn, canned peas, canned lima beans, canned potatoes, canned asparagus, canned snap beans, canned beets, beef, lamb, fresh ham, veal round, beef liver, chicken, chicken liver, turkey and other natural sources.

용도

DL-Phenylalanine is used to?relieve cases of minor depression?and other mood issues as well as and physical discomforts and pain. It is also used in acupuncture?anesthesia, alcohol withdrawal.

제조 방법

By microbial bioengineered process.

정의

ChEBI: An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group.

일반 설명

Phenylalanine is an amino acid. It participates in the preparation of ternary piroxicam complexes of Fe(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II). Characterization of these complexes by elemental analyses, molar conductance, IR, UV-Vis, magnetic moment, diffuse reflectance and X-ray powder diffraction methods has been conducted. Crystalline DL-phenylalanine was prepared by its reduction in silica gel by solubility method.

Purification Methods

dl-Phenylalanine crystallises from H2O or H2O/EtOH in large plates and is dried under vacuum over P2O5. S-Phenylalanine ethyl ester hydrochloride has m 156-158o and [ ] D -7.8o (c 2, H2O) after crystallisation from EtOH/Et2O [Billimoria & Cook J Chem Soc 2328 1949, Beilstein 14 IV 1556]. [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2156-2175 1961, Beilstein 14 III 1229, 14 IV 1553.]

DL-Phenylalanine 준비 용품 및 원자재

원자재

준비 용품

DL-Phenylalanine 공급 업체

공급자	전화	이메일	국가	제품 수	이점
DONBOO AMINO ACID COMPANY	+8613063595538	donboo@donboo.com	China	9365	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60
Shanghai Yingrui Biopharma Co., Ltd.	+86-21-33585366 - 03@	sales03@shyrchem.com	CHINA	738	60
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	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
Xiamen AmoyChem Co., Ltd	+86-592-6051114 +8618959220845	sales@amoychem.com	China	6387	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Shandong chuangyingchemical Co., Ltd.	18853181302	sale@chuangyingchem.com	CHINA	5909	58

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