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Purin

Purine Struktur
120-73-0
CAS-Nr.
120-73-0
Bezeichnung:
Purin
Englisch Name:
Purine
Synonyma:
9H-PURINE;1H-Purine;7H-Purine;X 128;PURINE;NSC 753;Isopurine;Purine 98%;Purine,99%;Purine,>98%
CBNumber:
CB6447322
Summenformel:
C5H4N4
Molgewicht:
120.11
MOL-Datei:
120-73-0.mol

Purin Eigenschaften

Schmelzpunkt:
214-217 °C (lit.)
Siedepunkt:
214.09°C (rough estimate)
Dichte
1.3106 (rough estimate)
Brechungsindex
1.7380 (estimate)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
L?slichkeit
DMSO (Slightly), Methanol (Slightly)
Aggregatzustand
Crystals
pka
2.3(at 20℃)
Farbe
White
Wasserl?slichkeit
400 g/L (20 ºC)
Merck 
7942
BRN 
3200
CAS Datenbank
120-73-0(CAS DataBase Reference)
NIST chemische Informationen
9H-Purine(120-73-0)
EPA chemische Informationen
Purine (120-73-0)

Sicherheit

S-S?tze: 22-24/25
WGK Germany  3
RTECS-Nr. UO7450000
HS Code  29335995
Toxizit?t LD50 intraperitoneal in rat: 800mg/kg

Purin Chemische Eigenschaften,Einsatz,Produktion Methoden

S-S?tze Betriebsanweisung:

S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

very slightly yellow to cream crystalline powder

Verwenden

Organic synthesis, metabolism, and biochemi- cal research. (2) One of a number of basic compounds found in living matter and having a purine-type molecular structure.

Definition

ChEBI: The 9H-tautomer of purine.

Biosynthese

Basically, the same pathway is found in all organisms capable of purine biosynthesis de novo. The initial substrate is the highly phosphorylated sugar 5-phosphoribosyl-α-1-pyrophosphate (PRPP). An amino group is transferred from glutamine to PRPP catalyzed by the enzyme glutamine PRPP amidotransferase. After that, it takes four reactions to complete the imidazole ring and an additional five reactions to synthesize the pyrimidine moiety and thereby to complete the purine molecule. In some bacteria (e.g., B. subtilis and Escherichia coli), the third step is also catalyzed by a second enzyme (purT) that uses formate instead of a tetrahydrofolic acid derivative as formyl donor. The sixth step has been found to be a two-step reaction, which in some organisms is catalyzed by a single enzyme. The end product of the de novo purine biosynthetic pathway is IMP. After the formation of IMP, purine synthesis splits into two separate pathways leading to the synthesis of AMP and GMP. The control point for feedback inhibition by purine nucleotides and activation by PRPP is on the activity of the first enzyme of the pathway glutamine PRPP amidotransferase. The branching from IMP is regulated by ATP and GTP to ensure a proper balance between ATP and GTP.

Allgemeine Beschreibung

Purine is a heterocyclic organic compound constituting a pyrimidine ring fused to an imidazole ring.

l?uterung methode

It crystallises from toluene or EtOH, and sublimes at 100-150o/0.1mm or 160o/10-4mm. The picrate has m 207-209o after crystallisation from 20volumes of H2O. [Beilstein 26 H 354, 26 III/IV 1736.]

Purin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Purin Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 162)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29791 60
Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070
product@chemlin.com.cn CHINA 3009 60
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 49374 58
career henan chemical co
+86-0371-86658258 +8613203830695
factory@coreychem.com China 29810 58
TargetMol Chemicals Inc.
+1-781-999-5354 +1-00000000000
marketing@targetmol.com United States 32161 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58
HANGZHOU CLAP TECHNOLOGY CO.,LTD
86-571-88216897,88216896 13588875226
sales@hzclap.com CHINA 6312 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250
1026@dideu.com China 22787 58
Finetech Industry Limited
+86-27-87465837 +8618971612321
info@finetechnology-ind.com China 9639 58

120-73-0(Purin)Verwandte Suche:


  • 3,5,7-Triazaindole
  • 6H-Imidazo[4,5-d]pyrimidine
  • beta-Purine
  • Imidazo(4,5-d)pyrimidine
  • Isopurine
  • NSC 753
  • X 128
  • PURINE
  • TIMTEC-BB SBB004288
  • 7H-IMIDAZO[4,5-D]PYRIMIDINE
  • Purine,>98%
  • 1H-Purine (9CI)
  • imidazolopyrimidine
  • 3H-imidazo[4,5-d]pyrimidine
  • Purine free base
  • Purine 98%
  • FINE ORGANIC COMPOUND PURINE DERIVATIVE
  • Purine,99%
  • Purine, 99% 1GR
  • Purine Solution
  • Purine USP/EP/BP
  • 1H-Purine
  • 7H-Purine
  • 9H-PURINE
  • Purine (6CI, 8CI)
  • 120-73-0
  • BioChemical
  • Biochemicals and Reagents
  • Building Blocks
  • Nucleosides, Nucleotides, Oligonucleotides
  • Purines
  • Heterocyclic Building Blocks
  • Nucleosides
  • PYRIMIDINE
  • Nucleic acids
  • Heterocycles series
  • Purine
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