GRAMICIDIN A

• Product Name:GRAMICIDIN A
• Synonyms: OHC-NH-VAL-GLY-ALA-D-LEU-ALA-D-VAL-VAL-D-VAL-TRP-D-LEU-TRP-D-LEU-TRP-D-LEU-TRP-CONCH2CH2OH OHC-NH-VAL-GLY-ALA-D-LEU-ALA-D-VAL-VAL-D-VAL-TRP-D-LEU-TRP-D-LEU-TRP-D-LEU-TRP-D-LEU-TRP-CONHCH2CH2OH HCO-VAL-GLY-ALA-D-LEU-ALA-D-VAL-VAL-D-VAL-TRP-D-LEU-TRP-D-LEU-TRP-D-LEU-NHCH2CH2OH HCO-VAL-GLY-ALA-D-LEU-ALA-D-VAL-VAL-D-VAL-TRP-D-LEU-TRP-D-LEU-TRP-D-LEU-TRP-NHCH2CH2OH HCO-X-GLY-L-ALA-D-LEU-L-ALA-D-VAL-L-VAL-D-VAL-L-TRP-D-LEU-L-TRP-D-LEU-L-TRP-D-LEU-L-TRP-NHCH2CH2OH GRAMICIDIN A GRAMICIDIN A, BACILLUS BREVIS GRIMICIDIN A
• CAS:11029-61-1
• MF:C99H140N20O17
• MW:1882.29
• EINECS:234-259-8
• Mol File:11029-61-1.mol
• 

Purify gramicidin A by countercurrent distribution from *C6H6/CHCl3, MeOH/H2O (15:15:23:7) with 5000 tubes. Fractions are examined by UV (280nm) of small aliquots. Separation from gramicidin C and other material occurred after 999 transfers. [Gross & Witkop Biochemistry 4 2495 1965, Bauer et al. Biochemistry 11 3266 1972.] Purify it finally by recrystallisation from EtOH/H2O and dry it at 100o/10-2mm over KOH. It forms platelets m 229-230o. It is almost insoluble in H2O (0.6%) but soluble in lower alcohols, dry Me2CO, dioxane, acetic acid and pyridine. The commercial material is more difficult to crystallise than the synthetic compound. [Sarges & Witkop J Am Chem Soc 86 1861 1964, 87 2011, 2020 1965.] It has characteristic [] D20 +27.3o (c 1.3, MeOH) and UV max at 282nm ( 22,100). The N-carbamoyldeformyl gramicidine A precipitates from EtOAc/pet ether (b 40-60o). [Beilstein 26 III/IV 4273.]

• Company Name:J & K SCIENTIFIC LTD.
• Tel:010-82848833 400-666-7788
• Products Intro:Product Name:Grimicidin A (High Purity), Bacillus brevis
  CAS:11029-61-1
  Purity:>95% Package:1EA More...
• CB Index:76
• Related Information:Catalog(94657)

• Company Name:Guangzhou Isun Pharmaceutical Co., Ltd
• Tel:020-39119399 18927568969
• Products Intro:Product Name:Gramicidin A from Bacillus brevis
  CAS:11029-61-1
  Purity:90% (HPLC) Package:5MG; 25MG; 100MG; 1G More...
• CB Index:55
• Related Information:Catalog(4674)

• Company Name:Hubei Jusheng Technology Co.,Ltd
• Tel:027-59599241 18871490274
• Products Intro:Product Name:GRAMICIDIN A
  CAS:11029-61-1
  Purity:99% HPLC Package:25KG;200KG;5KG;1KG;1T More...
• CB Index:58
• Related Information:Catalog(9958)

• Company Name:Shanghai EFE Biological Technology Co., Ltd.
• Tel:021-65675885 18964387627
• Products Intro:Product Name:Gramicidin A
  CAS:11029-61-1
  Purity:90% Package:1mg;5mg;10mg More...
• CB Index:58
• Related Information:Catalog(9806)

• Company Name:Beijing Jin Ming Biotechnology Co., Ltd.
• Tel:010-60605840 18892239720
• Products Intro:Product Name:Gramicidin A
  CAS:11029-61-1
  Purity:from Bacillus brevis Package:5mg;25mg;100mg
• CB Index:58
• Related Information:Catalog(12306)

• Company Name:Dideu Industries Group Limited
• Tel:+86-29-89586680 +86-15129568250
• Products Intro:Product Name:GRAMICIDIN A
  CAS:11029-61-1
  Purity:99.9% Package:1g;1.1USD Remarks:FDA GMP CEP Approved Manufacturer
• CB Index:58
• Related Information:Catalog(22784)