CAS 20174-68-9 · 2-Hydrazino-4-Methylbenzothiazole

2-Hydrazino-4-Methylbenzothiazole: direct from source to Europe

2-Hydrazino-4-Methylbenzothiazole (CAS 20174-68-9) is a crystalline heterocyclic hydrazine used as the key intermediate for the rice-blast fungicide tricyclazole and as a building block for fused benzothiazole systems.

  • COA, SDS & TDS with every batch
  • REACH status confirmed before quote
  • Samples available for qualification
Purityup to 99%+HPLC purity, premium grade
Lead time3 – 6 weeksOrigin to European port
FormSolid25 kg bags to bulk
Response1 business dayQuotation after receiving your spec
Product identification

2-Hydrazino-4-Methylbenzothiazole: names, synonyms and identifiers

Buyers search for this material under several names. Whichever one appears on your specification, purchase order or REACH dossier, it is the same compound: 2-Hydrazino-4-Methylbenzothiazole, CAS 20174-68-9.

  • Confirmed CAS number on every COA
  • Premium grade with HPLC purity 99%+ available
  • TDS and SDS supplied with every shipment
Common name
2-Hydrazino-4-Methylbenzothiazole
Synonyms
(4-Methylbenzothiazol-2-yl)hydrazine · 2-Hydrazinyl-4-methyl-1,3-benzothiazole · Tricyclazole hydrazine intermediate
CAS number
20174-68-9
Formula / MW
C8H9N3S  /  179.24 g/mol
Chemical family
Benzothiazole hydrazine
HS code
2934 (heterocyclic compounds with nitrogen and sulphur). Confirm the full code with your broker.

⚠ Not the same as 2-Hydrazino Benzothiazole (615-21-4), which lacks the 4-methyl group. Always match CAS 20174-68-9.

Technical data

2-Hydrazino-4-Methylbenzothiazole physical and chemical properties

Key parameters for process engineering, safety planning and storage design. Values are typical; always verify against the current TDS for your lot.

Appearance
Off-white to pale yellow crystalline solid
May darken on air exposure
Melting point
Approx. 200 °C
See TDS for lot value
Boiling point
As per TDS
Supplied with each order
Molecular weight
179.24
g/mol
Molecular formula
C8H9N3S
Benzothiazole hydrazine
Solubility
Low in water
Soluble in hot alcohols and polar solvents
Physical form
Solid
At room temperature
Storage
Cool & dry
Closed container, away from light and oxidisers
Quality & specification

2-Hydrazino-4-Methylbenzothiazole grade specifications: standard vs premium

Two grades are offered so your process chemist or quality team can pick what suits downstream requirements. COA parameters are confirmed before every shipment.

Parameter
Standard grade
Premium grade
Test method / note
HPLC purity
≥ 98.0%
≥ 99.0%
HPLC area %
Loss on drying
≤ 0.5%
≤ 0.3%
Gravimetric
Total impurities
≤ 2.0%
≤ 1.0%
By HPLC; individual limits on request
Identity
Confirmed
Confirmed
HPLC, IR or NMR
Appearance
Off-white to pale yellow crystalline solid
Off-white to pale yellow crystalline solid
Visual check

All values are specification limits, not guaranteed minima. Actual COA figures for your lot are provided before dispatch. Non-standard specifications are available on enquiry.

Applications

Where 2-Hydrazino-4-Methylbenzothiazole is used

Typical end uses and synthesis routes for European manufacturers, toll processors and laboratories.

Fungicide intermediate

Cyclised to the triazolobenzothiazole ring system of tricyclazole.

Heterocycle synthesis

Hydrazine handle for fused triazole and pyrazole systems.

Pharmaceutical research

Benzothiazole scaffold for screening and lead optimisation.

Custom synthesis

Starting material for contract synthesis of substituted benzothiazoles.

Packaging & logistics

Packed to your site, documented for customs

2-Hydrazino-4-Methylbenzothiazole is handled as a dangerous good. Every shipment leaves with UN-approved packaging, CLP labelling and the full document set for European import.

Bags

25 kg bags

UN-approved bags or lined fibre packs on pallets, suitable for FCL and LCL.

25 kg net
Drums

200 kg drums

UN-approved steel or fibre drums for higher volume users.

200 kg net
Bulk

Jumbo bags / bulk

Bulk bags for high-volume users, supplied on request for suitable receiving sites.

On request
Document set included: Bill of lading · Commercial invoice · Packing list · Certificate of analysis (COA) · Safety data sheet (SDS) · Dangerous goods declaration (IMDG/ADR) · Certificate of origin · Other certificates on request
Common questions

2-Hydrazino-4-Methylbenzothiazole: frequently asked questions

Quick answers for European buyers. For anything else, email source@cheloragroup.com.

It is also sold as (4-Methylbenzothiazol-2-yl)hydrazine, 2-Hydrazinyl-4-methyl-1,3-benzothiazole, Tricyclazole hydrazine intermediate. All refer to CAS 20174-68-9. Confirm the CAS number with any supplier before ordering.

Price depends on grade, volume, packing, Incoterm and destination port, and moves with raw material markets. Send us your requirement and we will quote in EUR or USD with a landed-cost breakdown, usually within one business day.

2-Hydrazino-4-Methylbenzothiazole (CAS 20174-68-9) is a crystalline heterocyclic hydrazine used as the key intermediate for the rice-blast fungicide tricyclazole and as a building block for fused benzothiazole systems.

Standard grade offers 98% minimum HPLC purity. Premium grade offers 99% minimum, lower moisture and inert-gas blanketed packaging. Premium is recommended for cyclisation routes with tight impurity control.

It is a direct precursor. Cyclisation of the hydrazine onto the benzothiazole ring builds the fused triazole system found in tricyclazole. Order by CAS (20174-68-9) and tell us your target route so we can match the impurity profile.

Hydrazine derivatives can face REACH, CLP and workplace-exposure obligations depending on use. We confirm the current status for your application before quoting.

Store in closed containers in a cool, dry, ventilated place, protected from light, strong oxidisers and acids. Use within the shelf life stated on the COA and TDS.

It is treated as a dangerous good (class and UN number per SDS; always confirm on the current SDS). We pack it in UN-approved containers, apply CLP labels and ship through licensed forwarders under IMDG for sea and ADR for European road.

Yes. Laboratory and pilot samples are supplied with a COA and SDS so your team can qualify the grade. Mention sample needs in your enquiry.

REACH status is confirmed before we quote. We advise on importer-of-record arrangements and whether the substance is registered for your use. Send your use descriptor and we will confirm.

Ready to source?

Get your 2-Hydrazino-4-Methylbenzothiazole quotation today

Send us the grade, volume, destination and Incoterm. You will receive a clear price, packaging options and a full document checklist, usually within one business day.

  • Samples to full containers
  • COA, SDS and DG documents included as standard
  • Quote in EUR or USD, your choice of Incoterm