天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

ChemicalBook--->CAS DataBase List--->543-21-5

543-21-5

543-21-5 Structure

543-21-5 Structure
IdentificationBack Directory
[Name]

ACETYLENEDICARBOXAMIDE
[CAS]

543-21-5
[Synonyms]

Aquamycin
Lenamycin
Renamycin
2-BUTYNEDIAMIDE
but-2-ynediaMide
ACETYLENEDICARBOXAMIDE
1,2-Ethynedicarboxamide
Acetylendicarbonsaeureamid
acetylenedicarboxylicaciddiamide
Acetylenedicarboxamide,95%,pract.
Acetylenedicarboxylic acid diamide
ACETYLENEDICARBOXAMIDE (PRACT), 95%
AquaMycin, ButynesiaMide, LenaMycin
Acetylenedicarboxamide2-Butynediamide
[EINECS(EC#)]

200-816-9
[Molecular Formula]

C4H4N2O2
[MDL Number]

MFCD00017146
[MOL File]

543-21-5.mol
[Molecular Weight]

112.09
Chemical PropertiesBack Directory
[Appearance]

CREAM TO BEIGE FINE CRYSTALLINE POWDER
[Melting point ]

179 °C
[Boiling point ]

209.98°C (rough estimate)
[density ]

1.4421 (rough estimate)
[refractive index ]

1.4610 (estimate)
[storage temp. ]

Store at -20°C
[solubility ]

DMF: 10 mg/ml; DMSO: 20 mg/ml; DMSO:PBS (pH 7.2) (1:7): 0.12 mg/ml
[form ]

Fine Crystalline Powder
[pka]

13.01±0.50(Predicted)
[color ]

Cream to beige
[EPA Substance Registry System]

2-Butynediamide (543-21-5)
Hazard InformationBack Directory
[Chemical Properties]

CREAM TO BEIGE FINE CRYSTALLINE POWDER
[Uses]

Cellocidin is a small neutral alkyne produced by a number of Streptomyces species, first discovered by Suzuki and colleagues in 1958. Cellocidin has a broad antibacterial, antifungal and antitumor profile due to its ability to react with endogenous thiols like cysteine and glutathione. Cellocidin occurs as a weak active in many bioassays using actinomycete crude extracts and is thus a useful standard for chemical and bioassay dereplication.
[Definition]

ChEBI: A dicarboxylic acid diamide resulting from the formal condensation of both of the carboxy groups of butynedioic acid with ammonia. An antibacterial agent produced by Streptomyces chibaensis.
[Description]

Cellocidin is an antibiotic originally isolated from S. chibaensis. It is active against various bacterial strains including M. tuberculosis and against the trypanosomes T. brucei and T. rhodesiense (IC50s = 150 and 30 ng/ml, respectively). It inhibits proliferation of LCL1 and LCL2 cells transformed by Epstein-Barr virus (EBV), activates the c-Myc and NF-κB pathways in BC3 and LCL1 cells, and induces necrotic cell death in B cells infected with gammaherpes virus. Cellocidin (100-200 ppm) is protective against bacterial leaf blight in rice plants and inhibits α-ketoglutarate oxidation in X. oryzae, the bacterium that causes leaf blight, when used at a concentration of 1 ppm, suggesting that it inhibits the citric acid cycle. Formulations containing cellocidin have been used as agricultural pesticides.
[Purification Methods]

Acetylenedicarboxamide crystallises from MeOH and H2O [m 190-192o(dec) as hemihydrate]. When prepared from the ester + NH3 it has m 213o(dec). Also a melting point of 290-292o(dec) has been reported. [Saggimo J Org Chem 22 1171 1857, Kharash et al. J Org Chem 10 392 1945, Blomquist & Winslow J Org Chem 10 156 1945, Beilstein 2 I 317, 2 III 1995, 2 IV 2295.]
Safety DataBack Directory
[Hazard Codes ]

T
[Risk Statements ]

25-21
[Safety Statements ]

45-36/37-28A
[HS Code ]

29241900
[Toxicity]

LD50 i.v. in mice: 11 mg/kg (Suzuki)
Spectrum DetailBack Directory
[Spectrum Detail]

ACETYLENEDICARBOXAMIDE(543-21-5)MS
ACETYLENEDICARBOXAMIDE(543-21-5)IR1
ACETYLENEDICARBOXAMIDE(543-21-5)IR2
543-21-5 suppliers list
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 18871490254
Website: www.hubeijusheng.com
Company Name: TargetMol Chemicals Inc.
Tel: +1-781-999-5354 +1-00000000000 , +1-00000000000
Website: https://www.targetmol.com/
Company Name: BOC Sciences
Tel: 16314854226; +16314854226 , +16314854226
Website: https://www.bocsci.com/
Company Name: Dayang Chem (Hangzhou) Co.,Ltd.
Tel: 571-88938639 +8617705817739 , +8617705817739
Website: https://www.dycnchem.com/
Company Name: Shaanxi Didu New Materials Co. Ltd
Tel: +86-89586680 +86-13289823923 , +86-13289823923
Website: https://www.dideu.com/en/
Company Name: GIHI CHEMICALS CO.,LIMITED
Tel: +8618058761490 , +8618058761490
Website: https://www.gihichemicals.com/
Company Name: SUZHOU SENFEIDA CHEMICAL CO.,LTD
Tel: +86-0512-83500002 +8615195660023 , +8615195660023
Website:
Company Name: Aladdin Scientific
Tel: +1-+1(833)-552-7181
Website: www.aladdinsci.com/
Company Name: Meryer (Shanghai) Chemical Technology Co., Ltd.  
Tel: 021-61259108 18621169109
Website: https://www.meryer.com/cn/index/
Company Name: 3B Pharmachem (Wuhan) International Co.,Ltd.  
Tel: 821-50328103-801 18930552037
Website: http://www.approvedhomemanagement.com/ShowSupplierProductsList13285/0.htm
Company Name: Hangzhou Yuhao Chemical Technology Co., Ltd  
Tel: 0571-82693216
Website: www.chemyuhao.com
Company Name: Hangzhou Sage Chemical Co., Ltd.  
Tel: +86057186818502 13588463833
Website: www.sagechem.com
Company Name: Thermo Fisher Scientific  
Tel: 800-810-5118
Website: www.thermo.com.cn
Company Name: Shanghai XinKai Chemical Technology Co., Ltd.  
Tel: 021-58930698 15921516558
Website: http://www.thinkerchem.com
Company Name: Shanghai EFE Biological Technology Co., Ltd.  
Tel: 021-65675885 18964387627
Website: http://www.efebio.com
Company Name: Shanghai SuperLan Chemcial Technique Centre  
Tel: 021-2022843681 15618226720
Website: http://www.approvedhomemanagement.com/ShowSupplierProductsList19886/0.htm
Company Name: Lynnchem  
Tel: 86-(0)29-85992781 17792393971
Website: http://www.lynnchem.com/
Company Name: Novachemistry  
Tel: 44-20819178-90 02081917890
Website: https://www.novachemistry.com/
Tags:543-21-5 Related Product Information
501-65-5 142-45-0 2450-71-7