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258881

Sigma-Aldrich

2-Amino-1,3,4-thiadiazole

97%

Synonym(s):

1,3,4-Thiadiazol-2-amine

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About This Item

Empirical Formula (Hill Notation):
C2H3N3S
CAS Number:
4005-51-0
Molecular Weight:
101.13
Beilstein:
107135
EC Number:
223-657-7
MDL number:
MFCD00003107
UNSPSC Code:
12352100
PubChem Substance ID:
24855666
NACRES:
NA.22

Quality Level

100

Assay

97%

form

powder

mp

188-191 °C (dec.) (lit.)

solubility

water: soluble 25 mg/mL, clear, colorless

SMILES string

Nc1nncs1

InChI

1S/C2H3N3S/c3-2-5-4-1-6-2/h1H,(H2,3,5)

InChI key

QUKGLNCXGVWCJX-UHFFFAOYSA-N

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General description

2-Amino-1,3,4-thiadiazole (donor) form charge transfer complexes with 2,3-dichloro-5,6-dicyano-p-benzoquinone, p-chloranil, o-chloranil, p-bromanil and chloranilic acid (acceptors). Effects of 2-amino-1,3,4-thiadiazole [aminothiadiazole (NSC 4728)] on purine and pyrimidine ribonucleotide pools of L1210 ascites cells in vivo has been reported.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

258881-5G:
258881-1G:
258881-250G:
258881-BULK:
258881-50G:
258881-5KG:
258881-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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P F Engstrom et al.
American journal of clinical oncology, 14(1), 33-35 (1991-02-01)
Twenty-three patients with advanced inoperable squamous cell carcinoma of the esophagus were treated with aminothiadiazole (A-TD) 125 mg/m2 weekly plus allopurinol daily in a phase II cooperative group trial. No patients responded to treatment; 17 patients progressed, three showed stable
R Asbury et al.
American journal of clinical oncology, 19(4), 400-402 (1996-08-01)
Aminothiadiazole (NSC 4728) is an analog of the thiadiazoles, a group of drugs that stimulated interest because they do not cause significant myelosuppression and have a unique ability to increase uric acid production unrelated to tissue damage. Previous articles have
R F Asbury et al.
American journal of clinical oncology, 10(5), 380-382 (1987-10-01)
The Eastern Cooperative Oncology Group (ECOG) studied 29 patients with advanced measurable colon cancer who were treated with Aminothiadiazole (NSC #4728) 125 mg/m2 intravenously. Allopurinol 300 mg daily was taken by all patients during treatment. Three patients (12%) demonstrated partial
J A Nelson et al.
Cancer research, 36(4), 1375-1378 (1976-04-01)
The effects of 2-amino-1,3,4-thiadiazole [aminothiadiazole (NSC 4728)] on purine and pyrimidine ribonucleotide pools of L1210 ascites cells in vivo are presented and discussed as they relate to the site of action. Within 1 hr after administration of the drug, the
Palraj Kalimuthu et al.
Bioelectrochemistry (Amsterdam, Netherlands), 79(2), 168-172 (2010-04-23)
We report the selective determination of homocysteine (HCY) in the presence of one of the very important interferents, ascorbic acid (AA) using electropolymerized film of 2-amino-1,3,4-thiadiazole (ATD) modified glassy carbon electrode (GCE) at physiological pH for the first time. An
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