2-Amino-5-methyl-1,3,4-thiadiazole

Modify Date: 2026-07-01 12:41:11

2-Amino-5-methyl-1,3,4-thiadiazole Structure
2-Amino-5-methyl-1,3,4-thiadiazole structure
Common Name 2-Amino-5-methyl-1,3,4-thiadiazole
CAS Number 108-33-8 Molecular Weight 115.15700
Density 1.372 g/cm3 Boiling Point 261.2ºC at 760 mmHg
Molecular Formula C3H5N3S Melting Point 224-225 °C
MSDS N/A Flash Point 111.8ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 2-Amino-5-methyl-1,3,4-thiadiazole
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.372 g/cm3
Boiling Point 261.2ºC at 760 mmHg
Melting Point 224-225 °C
Molecular Formula C3H5N3S
Molecular Weight 115.15700
Flash Point 111.8ºC
Exact Mass 115.02000
PSA 80.04000
LogP 1.00990
Vapour Pressure 6.12E-05mmHg at 25°C
Index of Refraction 1.631
InChIKey HMPUHXCGUHDVBI-UHFFFAOYSA-N
SMILES Cc1nnc(N)s1
Storage condition Room temperature.

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XI3500000
CHEMICAL NAME :
1,3,4-Thiadiazole, 2-amino-5-methyl-
CAS REGISTRY NUMBER :
108-33-8
LAST UPDATED :
199504
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C3-H5-N3-S
MOLECULAR WEIGHT :
115.17
WISWESSER LINE NOTATION :
T5NN DSJ CZ E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FRMCE8 Farmaco. (Societa Chimica Italiana, Corso Strada Nova, 86, Casella Postale 227, 27100 Pavia, Italy) V.44- 1989- Volume(issue)/page/year: 45,223,1990
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - quail
DOSE/DURATION :
>316 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EESADV Ecotoxicology and Environmental Safety. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1977- Volume(issue)/page/year: 6,149,1982 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7009 No. of Facilities: 4 (estimated) No. of Industries: 1 No. of Occupations: 16 No. of Employees: 1470 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S24/25-S37/39-S26
RTECS XI3500000
HS Code 2934999090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 2-Amino-5-methyl-1,3,4-thiadiazoleBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Primary cell-based high-throughput screening assay for identification of compounds th...
Source: Johns Hopkins Ion Channel Center
Target: regulator of G-protein signaling 4 isoform 2 [Homo sapiens]
External Id: JHICC_RGS_Act_HTS
Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN
Name: QFRET-based biochemical primary high throughput screening assay to identify exosite i...
Source: The Scripps Research Institute Molecular Screening Center
Target: disintegrin and metalloproteinase domain-containing protein 17 preproprotein [Homo sapiens]
External Id: ADAM17_INH_QFRET_1536_1X%INH PRUN
Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN
Name: uHTS identification of small molecule activators of the adaptive arm of the Unfolded ...
Source: Burnham Center for Chemical Genomics
Target: N/A
External Id: BCCG-A405-UPR-XBP1-PrimaryAgonist-Assay
Name: High throughput fluorescence intensity-based biochemical assay to screen for small mo...
Source: University of Pittsburgh Molecular Library Screening Center
Target: furin (paired basic amino acid cleaving enzyme), isoform CRA_a [Homo sapiens]
External Id: MH080376 Biochemical HTS for Inhibitors of the Proprotein Convertase Furin.
Name: Fluorescence polarization to screen for inhibitor that competite the binding of FadD2...
Source: Broad Institute
Target: FATTY-ACID-CoA LIGASE FADD28 (FATTY-ACID-CoA SYNTHETASE)
External Id: 2147-01_Inhibitor_SinglePoint_HTS_Activity
Name: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfect...
Source: Broad Institute
Target: N/A
External Id: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfected HEK293 cells Inhibition - 7011-01_Antagonist_SinglePoint_HTS_Activity
Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN
Name: Redox activity of compound assessed as redox index at 10 uM measured by resazurin ass...
Source: ChEMBL
Target: N/A
External Id: CHEMBL5107650
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

MFCD00003110
EINECS 203-573-7
5-Methyl-1,3,4-thiadiazol-2-amine

 2-Amino-5-methyl-1,3,4-thiadiazole | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Molecular formula of 2-Amino-5-methyl-1,3,4-thiadiazole is C3H5N3S.
Q: What is the molecular weight of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Molecular weight of 2-Amino-5-methyl-1,3,4-thiadiazole is 115.15700.
Q: What are the downstream products of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Related downstream products(CAS) of 2-Amino-5-methyl-1,3,4-thiadiazole: 1440-12-6;26621-37-4;25953-74-6;29490-19-5;54044-79-0;139477-29-5;13053-83-3;144-82-1;13228-82-5;16279-23-5.
Q: What is the CAS number of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: CAS number of 2-Amino-5-methyl-1,3,4-thiadiazole is 108-33-8.
Q: What is the polar surface area (PSA) of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Polar surface area (PSA) of 2-Amino-5-methyl-1,3,4-thiadiazole is 80.04000.
Q: What is the LogP of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: LogP of 2-Amino-5-methyl-1,3,4-thiadiazole is 1.00990.
Q: What is the English name of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: The English name of 2-Amino-5-methyl-1,3,4-thiadiazole is 2-Amino-5-methyl-1,3,4-thiadiazole.
Q: What is the melting point of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Melting point of 2-Amino-5-methyl-1,3,4-thiadiazole is 224-225 °C.
Q: What is the safety information for 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Safety information for 2-Amino-5-methyl-1,3,4-thiadiazole: S24/25-S37/39-S26.
Q: What are the upstream materials of 2-Amino-5-methyl-1,3,4-thiadiazole?
A: Related upstream materials(CAS) of 2-Amino-5-methyl-1,3,4-thiadiazole: 64-19-7;79-19-6;75-36-5;26934-29-2;32894-07-8;13053-83-3;70489-82-6;2302-88-7;116776-43-3.

 2-Amino-5-methyl-1,3,4-thiadiazolefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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