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Chemical Name:
TSZ;TSC;CHP3;NSC 2213;ai3-16319;NSC 31792;usafek-1275;USAF ek-1275;Aminothiourea;aminothio-urea
Molecular Formula:
Formula Weight:
MOL File:

thiosemicarbazide Properties

Melting point:
180-183 °C (dec.)(lit.)
1.221 (estimate)
refractive index 
1.5800 (estimate)
storage temp. 
Poison room
pK1:1.5(+1) (25°C,μ=0.1)
White to light yellow
5-7 (50g/l, H2O, 20℃)
Water Solubility 
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
79-19-6(CAS DataBase Reference)
NIST Chemistry Reference
EPA Substance Registry System
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T+
Risk Statements  28-52/53-26/27/28
Safety Statements  22-26-36/37-45-61-28A-36/37/39
RIDADR  UN 2811 6.1/PG 2
WGK Germany  3
RTECS  VT4200000
HazardClass  6.1
PackingGroup  II
HS Code  29309070
HS Code  29335995
Hazardous Substances Data 79-19-6(Hazardous Substances Data)
Toxicity LD50 orally in adult Norway rats: 13 mg/kg, Dieke, Proc. Soc. Exp. Biol. Med. 70, 688 (1949)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H300 Fatal if swallowed Acute toxicity,oral Category 1, 2 Danger P264, P270, P301+P310, P321, P330,P405, P501
H313 May be harmful in contact with skin Acute toxicity,dermal Category 5 P312
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P321 Specific treatment (see … on this label).
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P405 Store locked up.

thiosemicarbazide price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 89050 Thiosemicarbazide puriss. p.a., 98% 79-19-6 25g $37 2018-11-13 Buy
Sigma-Aldrich 89050 Thiosemicarbazide puriss. p.a., 98% 79-19-6 100g $83.6 2018-11-13 Buy
TCI Chemical T0221 Thiosemicarbazide >98.0%(T) 79-19-6 25g $16 2018-11-22 Buy
TCI Chemical T0221 Thiosemicarbazide >98.0%(T) 79-19-6 100g $50 2018-11-22 Buy
Alfa Aesar A14630 Thiosemicarbazide 98% 79-19-6 100g $24.5 2018-11-20 Buy

thiosemicarbazide Chemical Properties,Uses,Production

Chemical Properties

white crystalline solid

Chemical Properties

Thiosemicarbazide is an odorless, white crystalline powder.


As a reagent for detection of metals.

General Description

N-Aminothiourea is a white crystalline powder and is odorless. N-Aminothiourea is used as a reagent for ketones and certain metals, for photography and as a rodenticide. N-Aminothiourea is also effective for control of bacterial leaf blight of rice. Not a registered pesticide in the U.S. N-Aminothiourea is a chemical intermediate for herbicides and a reagent for detection of metals.

Reactivity Profile

Isocyanates and thioisocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].

Health Hazard

N-Aminothiourea is highly toxic by ingestion. May induce goiter and cause delayed toxic effects in blood and skin. May be mutagenic in human cells.

Fire Hazard

When heated to decomposition, very toxic fumes of sulfur oxides and nitrogen oxides are emitted.

Safety Profile

Poison by ingestion, intraperitoneal, and intravenous routes. Questionable carcinogen with experimental tumorigenic data. Human mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx.

Potential Exposure

Thiosemicarbazide is a dithiocarbamide compound is used as an intermedialte for pharmaceuticals and herbicides; as a reagent for ketones and certain metals; in certain photography and dye operations; as a rodenticide. It is also effective for control of bacterial leaf blight of rice.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Speed in removing material from skin is of extreme importance. Shampoo hair promptly if contaminated. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.


UN2771 Thiosemicarbazide, pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Purification Methods

Crystallise thiosemicarbazide from H2O (solubility is 20.3% w/w at 80o). The hydrochloride has m 190-191o(dec, 184o also reported). It forms salts with heavy metals. [Beilstein 3 H 195, 3 I 79, 3 II 134, 3 III 315, 3 IV 374.]


Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.) and strong reducing agents; contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. May react with nitrates.

thiosemicarbazide Preparation Products And Raw materials

Raw materials

Preparation Products

thiosemicarbazide Suppliers

Global( 288)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Jinan Shengqi pharmaceutical Co,Ltd
86+15552594168 CHINA 147 58
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 CHINA 3217 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20786 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 CHINA 1374 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32651 55
Nanjing Finetech Chemical Co., Ltd.
025-85710122 17714198479
025-85710122 CHINA 894 55
Hubei Jusheng Technology Co.,Ltd.
86-155-27864001 CHINA 18004 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 10967 58

View Lastest Price from thiosemicarbazide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-02-28 Thiosemicarbazide
US $23.00 / kg 1kg 98 10MT Jinan Shengqi pharmaceutical Co,Ltd
2019-02-28 Thiosemicarbazide
US $23.00 / kg 1kg 98 10MT Jinan Shengqi pharmaceutical Co,Ltd
2018-12-20 thiosemicarbazide
US $2.00 / kg 1kg 99% ask career henan chemical co

thiosemicarbazide Spectrum

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