Thiocarbohydrazide

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| ImageFile = Thiocarbohydrazide.svg

| ImageSize = 150px

| PIN = Hydrazinecarbothiohydrazide{{cite book |author=International Union of Pure and Applied Chemistry |date=2014 |title=Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 |publisher=The Royal Society of Chemistry |pages=878 |doi=10.1039/9781849733069 |isbn=978-0-85404-182-4}}

| OtherNames = 1,3-Diamino-2-thiourea; Thiocarbazide; Thiocarbonic dihydrazide; Thiocarbonyldihydrazide; Carbonothioic dihydrazide; TCh; Thiocarbonohydrazide

|Section1={{Chembox Identifiers

| CASNo = 2231-57-4

| CASNo_Ref = {{cascite|correct|}}

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 1IZ2H82NWU

| PubChem = 2724189

| ChemSpiderID = 2006346

| SMILES = C(=S)(NN)NN

| InChI = 1/CH6N4S/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)

| InChIKey = LJTFFORYSFGNCT-UHFFFAOYAM

| StdInChI = 1S/CH6N4S/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)

| StdInChIKey = LJTFFORYSFGNCT-UHFFFAOYSA-N

}}

|Section2={{Chembox Properties

| C=1 | H=6 | N=4 | S=1

| Appearance =

| Density =

| MeltingPtC = 171 to 174

| MeltingPt_notes = (decomposes)[http://www.sigmaaldrich.com/catalog/product/aldrich/223220?lang=en®ion=US Thiocarbohydrazide] at Sigma-Aldrich

| BoilingPt =

| Solubility =

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|Section3={{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt =

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Thiocarbohydrazide is a toxic compound made by the reaction of carbon disulfide with hydrazine (hydrazinolysis). It is used in the silver proteinate specific staining of carbohydrates in electron microscopy.