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M84445

Sigma-Aldrich

S-Methylisothiourea hemisulfate salt

98%

Synonym(s):

2-Methyl-2-thiopseudourea hemisulfate salt, S-Methyl-ITU, S-Methylthiuronium sulfate, SMT

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About This Item

Linear Formula:
HN=C(NH2)SCH3 · 1/2H2SO4
CAS Number:
867-44-7
Molecular Weight:
139.19
Beilstein:
3717365
EC Number:
212-759-7
MDL number:
MFCD00013055
UNSPSC Code:
12352100
PubChem Substance ID:
24897262
NACRES:
NA.22
Pricing and availability is not currently available.

Assay

98%

form

crystals

mp

240-241 °C (dec.) (lit.)

SMILES string

CSC(N)=N.CSC(N)=N.OS(O)(=O)=O

InChI

1S/2C2H6N2S.H2O4S/c2*1-5-2(3)4;1-5(2,3)4/h2*1H3,(H3,3,4);(H2,1,2,3,4)

InChI key

BZZXQZOBAUXLHZ-UHFFFAOYSA-N

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Biochem/physiol Actions

More potent than NMMA as an inhibitor of inducible nitric oxide synthetase (iNOS).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

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

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4181
STBK6814
STBJ8295
STBJ6039
STBJ1438

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Alison Mary et al.
Cerebral cortex (New York, N.Y. : 1991), 27(10), 4923-4932 (2016-09-23)
This magnetoencephalography study investigates how ageing modulates the relationship between pre-learning resting-state functional connectivity (rsFC) and subsequent learning. Neuromagnetic resting-state activity was recorded 5 min before motor sequence learning in 14 young (19-30 years) and 14 old (66-70 years) participants. We
Maciek Adamowski et al.
The Plant cell, 30(3), 700-716 (2018-03-08)
Clathrin-mediated endocytosis (CME) is a cellular trafficking process in which cargoes and lipids are internalized from the plasma membrane into vesicles coated with clathrin and adaptor proteins. CME is essential for many developmental and physiological processes in plants, but its
Paolo Caraceni et al.
Lancet (London, England), 391(10138), 2417-2429 (2018-06-05)
Evidence is scarce on the efficacy of long-term human albumin (HA) administration in patients with decompensated cirrhosis. The human Albumin for the treatmeNt of aScites in patients With hEpatic ciRrhosis (ANSWER) study was designed to clarify this issue. We did
Nicholas H Kirkerud et al.
Frontiers in behavioral neuroscience, 11, 94-94 (2017-06-08)
The honeybee has been established as an important model organism in studies on visual learning. So far the emphasis has been on appetitive conditioning, simulating floral discrimination, and homing behavior, where bees perform exceptionally well in visual discrimination tasks. However
Leilei Bai et al.
Environmental pollution (Barking, Essex : 1987), 230, 87-95 (2017-06-27)
Phytoplankton-derived dissolved organic matter (PDOM) and macrophyte-derived dissolved organic matter (MDOM) exist ubiquitously in eutrophic freshwater lakes. To understand the heterogeneous roles of individual fluorescent DOM components in the adsorption of antibiotics onto sediment minerals, the adsorptive fractionation of DOM
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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