2-Naphthalenethiol
- CAS No.
- 91-60-1
- Chemical Name:
- 2-Naphthalenethiol
- Synonyms
- NAPHTHALENE-2-THIOL;rpa2;RPA 2;2-Naphthyl thiol;2-CHLOROBENZENEMETHANETHIOL;rpano.2;renacit1;usafcy-4;Rpa no. 2;Renacit 1
- CBNumber:
- CB8123370
- Molecular Formula:
- C10H8S
- Molecular Weight:
- 160.24
- MDL Number:
- MFCD00004086
- MOL File:
- 91-60-1.mol
- MSDS File:
- SDS
| Melting point | 79-81 °C (lit.) |
|---|---|
| Boiling point | 286 °C (lit.) |
| Density | 1.22 |
| refractive index | 1.589-1.591 |
| FEMA | 3314 | 2-NAPHTHALENTHIOL |
| FLAVIS Number | 12.033 | Naphthalene-2-thiol |
| Flash point | 69 °C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | diethyl ether: very soluble(lit.) |
| form | Powder |
| pka | 6+-.0.30(Predicted) |
| color | Almost white to cream |
| Odor | at 0.10 % in propylene glycol. sulfurous rubbery meaty roasted woody creamy artichoke |
| Odor Type | sulfurous |
| Water Solubility | Soluble in alcohol, dipropylene glycol. Soluble in water 34.4 mg/L @ 25°C. |
| Sensitive | Air Sensitive |
| Merck | 14,6379 |
| JECFA Number | 531 |
| BRN | 636389 |
| InChI | 1S/C10H8S/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H |
| InChIKey | RFCQDOVPMUSZMN-UHFFFAOYSA-N |
| SMILES | Sc1ccc2ccccc2c1 |
| LogP | 3.75 |
| CAS DataBase Reference | 91-60-1(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | 2-NAPHTHALENTHIOL |
| EWG's Food Scores | 1 |
| FDA UNII | SZ5U1S741V |
| NIST Chemistry Reference | 2-Naphthalenethiol(91-60-1) |
| EPA Substance Registry System | 2-Naphthalenethiol (91-60-1) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS06 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H301-H315-H319-H335-H302 | |||||||||
| Precautionary statements | P261-P280a-P301+P310a-P305+P351+P338-P405-P501a | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 22-20/21/22 | |||||||||
| Safety Statements | 36/37 | |||||||||
| RIDADR | UN 3335 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QK3930000 | |||||||||
| F | 13 | |||||||||
| Hazard Note | Harmful/Irritant | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29309070 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| NFPA 704 |
|
2-Naphthalenethiol price More Price(51)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 270849 | 2-Naphthalenethiol 99% | 91-60-1 | 5g | $72.4 | 2026-04-30 | Buy |
| Sigma-Aldrich | 270849 | 2-Naphthalenethiol 99% | 91-60-1 | 25g | $224 | 2026-04-30 | Buy |
| TCI Chemical | N0020 | 2-Naphthalenethiol >98.0%(GC)(T) | 91-60-1 | 25g | $213 | 2026-04-30 | Buy |
| TCI Chemical | N0020 | 2-Naphthalenethiol >98.0%(GC)(T) | 91-60-1 | 250g | $1913 | 2026-04-30 | Buy |
| Usbiological | 527844 | RPA2 Purifiedbyimmunoaffinitychromatography. | 100ul | $736 | 2026-06-03 | Buy |
2-Naphthalenethiol Chemical Properties, Uses, Production
Description
2-Naphthalenthiol has a disagreeable mercaptan-like odor. May be prepared by catalytic hydrogenation of a sulfonic acid derivative of naphthalene; by reduction of naphthalenesulfonyl chloride with zinc.
Chemical Properties
2-Naphthyl mercaptan has a disagreeable sulfurous, mushroom, meaty odor
Chemical Properties
Almost white to cream powder
Uses
2-Thionaphthol was used in the preparation of cholesterol monolayer and multilayer Langmuir- Blodgett (LB) films. The magnetic resonance shift for a self-assembled monolayer of 2-naphthalenethiol was studied that suggested considerable promise in flexible and transparent photonic devices for biological and chemical sensing.
Preparation
By catalytic hydrogenation of a sulfonic acid derivative of naphthalene; by reduction of naphthalenesulfonyl chloride with zinc.
Definition
ChEBI: 2-Naphthalenethiol is a member of naphthalenes.
Taste threshold values
Taste characteristics at 10 ppm: sulfurous, meaty, brown, roasted, chicken, eggy with a slight nutty nuance
Synthesis Reference(s)
The Journal of Organic Chemistry, 31, p. 3980, 1966 DOI: 10.1021/jo01350a023
Tetrahedron Letters, 37, p. 4523, 1996 DOI: 10.1016/0040-4039(96)00873-8
General Description
The magnetic resonance shift for a self-assembled monolayer of 2-naphthalenethiol was studied that suggested considerable promise in flexible and transparent photonic devices for biological and chemical sensing.
Safety Profile
Poison by ingestion and intraperitoneal routes. A mosquito larvicide. When heated to decomposition it emits highly toxic fumes of SOx.
Purification Methods
It is steam volatile. It has to be distilled under Ar or N2, as it oxidises to the disulfide, and crystallises from EtOH. The S-methyl derivative has m 104-105o (from *C6H6/pet ether), and the S-ethyl derivative M 188.2, has m 16o and b 175-170.5o/15mm. The S-acetate has m 53.5o and b 191o/15mm, and the diethylamine salt forms yellow needles m 107o from dioxane. [Beilstein 6 H 657, 6 I 316, 6 II 610, 6 III 3006, 6 IV 4312.]
2-Naphthalenethiol Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| LYSCHEM International LLC | 13911018262 | sales@lyschem.us | Americas | 467 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Shijiazhuang Sdyano Fine Chemical Co., Ltd. | 0311-89250318 13582355795 | master@sjzsdyn.com | China | 2776 | 65 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Yaqee Industrial Corporation Limited | +86-561-5269788, 5209788 | China | 40 | 66 |
Related articles
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- Aug 4,2025
View Latest Price from 2-Naphthalenethiol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-02 | 2-Naphthalenethiol
91-60-1
|
$2.00-10.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2025-12-29 | 2-Naphthalenethiol
91-60-1
|
1kg | 90% | 10mt per month | Changzhou waston chemical technology Co.,Ltd | ||
 |
2024-08-28 | 2-Naphthalenethiol
91-60-1
|
$2400.00 | 1Kg | 98 | 500 Kg | R&D Scientific Inc. |
-
- 2-Naphthalenethiol
91-60-1
- $2.00-10.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- 2-Naphthalenethiol
91-60-1
- $0.00
- 90%
- Changzhou waston chemical technology Co.,Ltd
-
- 2-Naphthalenethiol
91-60-1
- $2400.00
- 98
- R&D Scientific Inc.
