2 एथिलहेक्सानॉल कैस नंबर: 104-76-7

3

3

3

C8H18O

C4H4N2O2

C4H6O4S

104-76-7

66-22-8

79-43-6

1000 प्रति महीने

500 प्रति महीने

1 प्रति सप्ताह

7-8 दिन

1 हफ़्ता

1 हफ़्ता

ऑल इंडिया

ऑल इंडिया

9024

29309099

स्फटिक

Crystalline

194

101-103°C

In RNA, uracil base-pairs with adenine and replaces thymine during DNA transcription. Methylation of uracil produces thymine.[10] In DNA, the evolutionary substitution of thymine for uracil may have increased DNA stability and improved the efficiency of DNA replication (discussed below). Uracil pairs with adenine through hydrogen bonding. When base pairing with adenine, uracil acts as both a hydrogen bond acceptor and a hydrogen bond donor. In RNA, uracil binds with a ribose sugar to form the ribonucleoside uridine. When a phosphate attaches to uridine, uridine 5'-monophosphate is produced.[6] Uracil undergoes amide-imidic acid tautomeric shifts because any nuclear instability the molecule may have from the lack of formal aromaticity is compensated by the cyclic-amidic stability.[5] The amide tautomer is referred to as the lactam structure, while the imidic acid tautomer is referred to as the lactim structure. These tautomeric forms are predominant at pH 7. The lactam structure is the most common form of uracil. Uracil tautomers: Amide or lactam structure (left) and imide or lactim structure (right) Uracil also recycles itself to form nucleotides by undergoing a series of phosphoribosyltransferase reactions.[2] Degradation of uracil produces the substrates aspartate, carbon dioxide, and ammonia.[2] C4H4N2O2 → H3NCH2CH2COO− + NH4+ + CO2 Oxidative degradation of uracil produces urea and maleic acid in the presence of H2O2 and Fe2+ or in the presence of diatomic oxygen and Fe2+. Uracil is a weak acid. The first site of ionization of uracil is not known.[11] The negative charge is placed on the oxygen anion and produces a pKa of less than or equal to 12. The basic pKa = -3.4, while the acidic pKa = 9.389. In the gas phase, uracil has 4 sites that are more acidic than water.[12]

Thiol-containing dicarboxylic acid, forms chelates with metal ions, reducing agent, isomeric with malic acid

112.088 g/mol ग्राम (g)

150.15 g/mol

3 वर्ष

24 months from date of manufacture

Solubility in water

Soluble in water, alcohol, and ether