Cytosine (C) is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached (an amine group at position 4 and a keto group at position 2). The nucleoside of cytosine is cytidine. In Watson-Crick base pairing, it forms three hydrogen bonds with guanine. Synonyms: 6-Amino-2(1H)-pyrimidinone, 4-Amino-1H-pyrimidin-2-one, 4-Amino-2(1H)-pyrimidinone, 4-Amino-2-hydroxypyrimidine, 4-Aminouracil, Cytosinimine, NSC 27787 CAS No: 71-30-7 Molecular Formula: C4H5N3O Molecular Weight: 111.10 Appearance: White to off-white powder Purity: 98% (HPLC) Melting Point: >300C (lit) Heavy Metals: 0.001% Loss on Drying: 0.5% Residue On Ignition: 0.1% Storage and Stability: Store at RT. Stable for 12 months after receipt.
Molecular Weight:
111.1
Purity:
98%
Form:
White to off-white powder
CAS Number:
[71-30-7]
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