5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE

5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE - Names and Identifiers

Name	5-Amino-3H-1,2,4-dithiazole-3-thione
Synonyms	Nsc65248 3-AMino-1 XANTHANE HYDRIDE isoperthiocyanicacid 4-dithiazole-5-thione 4-dithiazole-3-thione,5-amino-2 3-AMINO-1,2,4-DTHIAZOLE-5-THIONE 3-Amino-1,2,4-dithiazole-5-thione 5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE 4-dithiazolidine-3-thione,5-imino-2 5-Amino-3H-1,2,4-dithiazole-3-thione 5-imino-1,2,4-dithiazolidine-3-thione 3-Amino-3H-1,2,4-dithiazole-5-thione, 5-Amino-3-thioxo-3H-1,2,4-dithiazole
CAS	6846-35-1
EINECS	229-933-3
InChI	InChI=1/C2H2N2S3/c3-1-4-2(5)7-6-1/h(H2,3,4,5)
InChIKey	YWZHEXZIISFIDA-UHFFFAOYSA-N

5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE - Physico-chemical Properties

Molecular Formula	C2H2N2S3
Molar Mass	150.25
Density	2.00
Melting Point	201-203°C
Boling Point	2.00 °C
Flash Point	124 °C
Vapor Presure	0.00344mmHg at 25°C
Appearance	solid
Color	Light yellow to Brown
pKa	-1.03±0.20(Predicted)
Storage Condition	2-8°C(protect from light)
Refractive Index	1.5300 (estimate)
MDL	MFCD00051660

5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
RTECS	JO6500000
Hazard Note	Irritant

5-AMINO-[1,2,4]DITHIAZOLE-3-THIONE - Reference Information

important raw material for oligonucleotide synthesis

xanthine hydride is an important raw material for oligonucleotide synthesis, alias 3-amino -1,2, 4-dithiazole-5-thione, molecular formula C2H2N2S3, yellow crystal, commonly used in organic synthesis, it is one of the commonly used thioreagents in the solid phase synthesis of thioantisense oligonucleotides. Phosphorothioate antisense oligonucleotides are a class of antisense oligonucleotide analogs formed by the substitution of non-bonded oxygen atoms on the phosphate backbone of antisense oligonucleotides with sulfur atoms, it overcomes the property that antisense oligonucleotides are degraded by enzymes in serum, and thus has an important role in the treatment of cancer and the inhibition of gene expression. In the solid-phase synthesis of thiooligonucleotides, once the oligonucleotides on the carrier are coupled to phosphoramidite riboside, the nucleotides on the new coupling need to be thiooxidized, the yield of the thioreaction affects the purity of the product of the thioantisense oligonucleotide, and the incomplete thiogeneration will lead to the introduction of Oxo impurities, therefore, the quality of the thioreagent has an important influence on the synthesis of the thioantisense oligonucleotide and the content of the final product.

Last Update：2024-04-09 21:04:16