Product Name

  • Name

    Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione

  • EINECS 261-490-1
  • CAS No. 58909-39-0
  • Article Data7
  • CAS DataBase
  • Density 1.62 g/cm3
  • Solubility
  • Melting Point 168-171 °C(lit.)
  • Formula C4H5N3O2S
  • Boiling Point 272.3 °C at 760 mmHg
  • Molecular Weight 159.169
  • Flash Point 118.5 °C
  • Transport Information
  • Appearance white powder
  • Safety 36
  • Risk Codes 20/21/22
  • Molecular Structure Molecular Structure of 58909-39-0 (Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione)
  • Hazard Symbols Xi
  • Synonyms 2,5-Dihydro-6-Hydroxy-3-Mercapto-2-Methyl-5-oxo-1,2,4-Triazine ( TTZ , Thiotriazinone );2-Methyl-5,6-dioxo-1,2,5,6-tetrahydro-1,2,4-triazine-3-thiol;
  • PSA 102.74000
  • LogP -0.86880

Synthetic route

2-methyl-thiosemicarbazide
6938-68-7

2-methyl-thiosemicarbazide

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

Conditions
ConditionsYield
With dmap; N,N,N,N,-tetramethylethylenediamine; sodium methylate In methanol; ethanol at 15 - 55℃; for 4h; Temperature; Solvent; Reagent/catalyst;92.7%
With sodium methylate In methanol; dimethyl sulfoxide at 0 - 45℃; Solvent;91.6%
Dimethyl oxalate
553-90-2

Dimethyl oxalate

ammonium thiocyanate

ammonium thiocyanate

methylhydrazine
60-34-4

methylhydrazine

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

Conditions
ConditionsYield
Stage #1: ammonium thiocyanate; methylhydrazine In water at 95 - 100℃;
Stage #2: Dimethyl oxalate With sodium methylate In methanol at 65 - 75℃; for 6h; Temperature;		75%
...Expand
sodium salt of ceftriaxone

sodium salt of ceftriaxone

A

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

B

(6R,7S)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid anion

(6R,7S)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid anion

C

C14H13N5O6S2(2-)
153470-19-0

C14H13N5O6S2(2-)

Conditions
ConditionsYield
With Carbonate buffer at 37℃; Rate constant; H/D-isotopic effect were studied too;
...Expand
(6R,7S)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid anion

(6R,7S)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid anion

A

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

B

sodium salt of ceftriaxone

sodium salt of ceftriaxone

C

C14H13N5O6S2(2-)

C14H13N5O6S2(2-)

Conditions
ConditionsYield
With Carbonate buffer at 37℃; Rate constant; H/D-isotopic effect were studied too;
...Expand
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one
94088-75-2

2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one

7-Aminocephalosporanic acid
957-68-6

7-Aminocephalosporanic acid

ceftriaxone sodium

ceftriaxone sodium

Conditions
ConditionsYield
Stage #1: 2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine; 7-Aminocephalosporanic acid With carbonic acid dimethyl ester at 35℃; for 1h;
Stage #2: 2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one for 0.166667h;
Stage #3: With triethylamine at 10℃; for 4h; Concentration; Temperature;		99.5%
...Expand
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7-Aminocephalosporanic acid
957-68-6

7-Aminocephalosporanic acid

7-aminoceftrizine
58909-56-1

7-aminoceftrizine

Conditions
ConditionsYield
With boron trifluoride dimethyl carbonate complex; methanesulfonic acid at 10 - 12℃; for 0.383333h; Reagent/catalyst;95.1%
With boron trifluoride dimethyl carbonate complex; edetate disodium at 30℃; for 0.833333h; Time;90%
With boron trifluoride In acetonitrile at 10 - 30℃; for 0.5h;85.71%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7-Aminocephalosporanic acid
957-68-6

7-Aminocephalosporanic acid

7-amino-3-[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazine-3-mercapto)methyl]-3 cephalosporin-4-carboxylic acid
58909-56-1

7-amino-3-[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazine-3-mercapto)methyl]-3 cephalosporin-4-carboxylic acid

Conditions
ConditionsYield
With aluminum (III) chloride; boron trifluoride; carbonic acid dimethyl ester at 5 - 30℃; for 1h;92%
With aluminum (III) chloride; boron trifluoride; carbonic acid dimethyl ester at 5 - 30℃; for 1h; Reagent/catalyst;90%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7α-methoxy-8-oxo-2-(pyrrolidinocarbonyl)-3-(chloromethyl)-5-thia-1-azabicyclo<4.2.0>oct-2-ene 5,5-dioxide
143731-84-4

7α-methoxy-8-oxo-2-(pyrrolidinocarbonyl)-3-(chloromethyl)-5-thia-1-azabicyclo<4.2.0>oct-2-ene 5,5-dioxide

L-659,286
119742-06-2

L-659,286

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone for 16h; Ambient temperature;85%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

fipronilβ-cyclodextrin
7585-39-9

fipronilβ-cyclodextrin

C4H5N3O2S*C42H70O35

C4H5N3O2S*C42H70O35

Conditions
ConditionsYield
In water at 30℃; for 24.5h;83%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

1,1-dimethylethyl 3-(chloromethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate 5,5-dioxide
95672-05-2

1,1-dimethylethyl 3-(chloromethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate 5,5-dioxide

1,1-dimethylethyl 7α-methoxy-3-{[(1,2,5,6-tetrahydro-5,6-dioxo-2-methyl-as-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 5,5-dioxide
116536-09-5

1,1-dimethylethyl 7α-methoxy-3-{[(1,2,5,6-tetrahydro-5,6-dioxo-2-methyl-as-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 5,5-dioxide

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone80%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

tert-butylchlorodiphenylsilane
58479-61-1

tert-butylchlorodiphenylsilane

6-((tert-butyldiphenylsilyl)oxy)-3-mercapto-2-methyl-1,2,4-triazin-5(2H)-one

6-((tert-butyldiphenylsilyl)oxy)-3-mercapto-2-methyl-1,2,4-triazin-5(2H)-one

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 20 - 25℃; for 1h;78%
With triethylamine In tetrahydrofuran
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

alpha cyclodextrin
10016-20-3

alpha cyclodextrin

C36H60O30*C4H5N3O2S

C36H60O30*C4H5N3O2S

Conditions
ConditionsYield
In water at 30℃; for 24.5h;50%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

N-methyl-N-<(tert-butoxycarbonyl)methyl>-3-(chloromethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxamide 5,5-dioxide
116536-11-9

N-methyl-N-<(tert-butoxycarbonyl)methyl>-3-(chloromethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxamide 5,5-dioxide

N-methyl-N-[(tert-butoxycarbonyl)methyl]-7α-methoxy-8-oxo-3-{[(1,2,5,6-tetrahydro-5,6-dioxo-2-methyl-as-triazin-3-yl)thio]methyl}-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamide 5,5-dioxide
116536-14-2

N-methyl-N-[(tert-butoxycarbonyl)methyl]-7α-methoxy-8-oxo-3-{[(1,2,5,6-tetrahydro-5,6-dioxo-2-methyl-as-triazin-3-yl)thio]methyl}-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamide 5,5-dioxide

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone for 16h; Ambient temperature;45%
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

[((6R,7S)-3-Chloromethyl-7-ethyl-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-methyl-amino]-acetic acid tert-butyl ester

[((6R,7S)-3-Chloromethyl-7-ethyl-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-methyl-amino]-acetic acid tert-butyl ester

{[(6R,7S)-7-Ethyl-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-methyl-amino}-acetic acid tert-butyl ester

{[(6R,7S)-7-Ethyl-3-(6-hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-methyl-amino}-acetic acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone for 16h; Ambient temperature;
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

3-[((6R,7S)-3-Chloromethyl-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-methyl-amino]-propionic acid tert-butyl ester

3-[((6R,7S)-3-Chloromethyl-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-methyl-amino]-propionic acid tert-butyl ester

3-{[(6R,7S)-3-(6-Hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-methyl-amino}-propionic acid tert-butyl ester

3-{[(6R,7S)-3-(6-Hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-methyl-amino}-propionic acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone for 16h; Ambient temperature;
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

(S)-1-((6R,7S)-3-Chloromethyl-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-pyrrolidine-2-carboxylic acid tert-butyl ester

(S)-1-((6R,7S)-3-Chloromethyl-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl)-pyrrolidine-2-carboxylic acid tert-butyl ester

(S)-1-[(6R,7S)-3-(6-Hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-pyrrolidine-2-carboxylic acid tert-butyl ester

(S)-1-[(6R,7S)-3-(6-Hydroxy-2-methyl-5-oxo-2,5-dihydro-[1,2,4]triazin-3-ylsulfanylmethyl)-7-methoxy-5,5,8-trioxo-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-pyrrolidine-2-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
With sodium hydrogencarbonate In water; acetone for 16h; Ambient temperature;
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

2α-bromo-4-(tert-butylcarbonyl)-7α-methoxy-3-methylcephem 1,1-dioxide
138810-38-5

2α-bromo-4-(tert-butylcarbonyl)-7α-methoxy-3-methylcephem 1,1-dioxide

4-(tert-butylcarbonyl)-2α-<6-(hydroxy-2-methyl-5-oxo-2,5-dihydro-1,2,4-triazin-3-yl)thio>-7α-methoxy-3-methyl-Δ3-cephem 1,1-dioxide

4-(tert-butylcarbonyl)-2α-<6-(hydroxy-2-methyl-5-oxo-2,5-dihydro-1,2,4-triazin-3-yl)thio>-7α-methoxy-3-methyl-Δ3-cephem 1,1-dioxide

Conditions
ConditionsYield
With TEA In acetonitrile for 0.5h;
cefotaxime
60846-21-1, 63527-52-6, 63527-53-7

cefotaxime

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

ceftriaxone
73384-59-5, 92143-31-2

ceftriaxone

Conditions
ConditionsYield
With sodium acetate In methanol; dichloromethane; water
3-iodomethyl-3-cephem

3-iodomethyl-3-cephem

7β-[2-(2-Aminothiazol-4-yl)-(4-chlorobenzyloxyimino)acetamido]-3-acetoxymethyl-3-cephem-4-carboxylic acid

7β-[2-(2-Aminothiazol-4-yl)-(4-chlorobenzyloxyimino)acetamido]-3-acetoxymethyl-3-cephem-4-carboxylic acid

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7β-[2-(2-Aminothiazol-4-yl)-2-(4-chlorobenzyloxyimino)acetamido]-3-[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thiomethyl]-3-cephem-4-carboxylic acid

7β-[2-(2-Aminothiazol-4-yl)-2-(4-chlorobenzyloxyimino)acetamido]-3-[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3-yl)thiomethyl]-3-cephem-4-carboxylic acid

Conditions
ConditionsYield
With TMSI; acetic acid In tetrahydrofuran; dichloromethane; water; dimethyl sulfoxide; acetonitrile
...Expand
7β-[2-(2-aminothiazol-4-yl)-2-(4-hydroxybenzyloxyimino)acetamido]-3-acetoxymethyl-3-cephem-4-carboxylic acid

7β-[2-(2-aminothiazol-4-yl)-2-(4-hydroxybenzyloxyimino)acetamido]-3-acetoxymethyl-3-cephem-4-carboxylic acid

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7β-[2-(2-Aminothiazol-4-yl)-2-(4-hydroxybenzyloxyimino)acetamido]-3-[(2,5-dihydro-6-hydroxy-2-methyl5-oxo-1,2,4-triazin-3-yl)thiomethyl]-3-cephem-4carboxylic acid

7β-[2-(2-Aminothiazol-4-yl)-2-(4-hydroxybenzyloxyimino)acetamido]-3-[(2,5-dihydro-6-hydroxy-2-methyl5-oxo-1,2,4-triazin-3-yl)thiomethyl]-3-cephem-4carboxylic acid

Conditions
ConditionsYield
With TMSI; sodium hydrogencarbonate; acetic acid In tetrahydrofuran; dichloromethane; water; acetonitrile
4-picolylchloride hydrochloride
1822-51-1

4-picolylchloride hydrochloride

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

2-methyl-3-(pyridin-4-ylmethylthio)-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

2-methyl-3-(pyridin-4-ylmethylthio)-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

Conditions
ConditionsYield
With sodium hydrogencarbonate In water
2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine
58909-39-0

2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine

7-aminocephalosporanic acid
108260-00-0

7-aminocephalosporanic acid

N,N,N',N'-tetramethylguanidine
80-70-6

N,N,N',N'-tetramethylguanidine

C12H13N5O5S2*C5H13N3

C12H13N5O5S2*C5H13N3

Conditions
ConditionsYield
Stage #1: 2-methyl-3-mercapto-5-oxo-6-hydroxy-2,5-dihydro-1,2,4-triazine; 7-aminocephalosporanic acid In acetonitrile
Stage #2: N,N,N',N'-tetramethylguanidine With triethylamine In dichloromethane at -15℃;
...Expand

Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione Chemical Properties

The Molecular Structure of Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione (CAS NO.58909-39-0):

Empirical Formula: C4H5N3O2S
Molecular Weight: 159.1664 
IUPAC: 2-methyl-3-sulfanylidene-1,2,4-triazinane-5,6-dione
Product Categories: Building Blocks;Heterocyclic Building Blocks;Triazines
Nominal Mass: 159 Da
Average Mass: 159.1664 Da
Monoisotopic Mass: 159.010246 Da 
Index of Refraction: 1.678
Molar Refractivity: 37.04 cm3
Molar Volume: 98.1 cm3
Surface Tension: 87.6 dyne/cm
Density: 1.62 g/cm3
Flash Point: 118.5 °C
Enthalpy of Vaporization: 59.28 kJ/mol
Boiling Point: 272.3 °C at 760 mmHg
Vapour Pressure: 0.000795 mmHg at 25°C 
InChI
InChI=1/C4H5N3O2S/c1-7-4(10)5-2(8)3(9)6-7/h1H3,(H,6,9)(H,5,8,10)
Smiles
[nH]1c(n(C)[nH]c(c1=O)=O)=S

Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione Uses

 Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione (CAS NO.58909-39-0) can be used as intermediates of ceftriaxone, ceftriaxone sodium, etc. drugs.

Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione Safety Profile

Risk Statements: 20/21/22 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed
Safety Statements: 36 
S36:Wear suitable protective clothing
WGK Germany: 3

Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione Specification

 Tetrahydro-2-methyl-3-thioxo-1,2,4-triazine-5,6-dione (CAS NO.58909-39-0) is also called as EINECS 261-490-1 .

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