Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Isobutanethiol
Price: Check
Purity: 99.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Isobutanethiol
Price: ￥168.0/25ml ￥488.0/100ml
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Isobutyl mercaptan
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Isobutylmercaptan
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

513-44-0

513-44-0 structure

513-44-0 structure

Name: Isobutanethiol
Chemical Name: Isobutylmercaptan
CAS Number: 513-44-0
Molecular Formula: C₄H₁₀S
Molecular Weight: 90.187
Catalog: Flavors and spices Synthetic spice Thiol perfume
Create Date: 2018-08-16 21:55:44
Modify Date: 2025-08-25 17:39:15

Name	Isobutylmercaptan
Synonyms	2-Methyl-1-propanethiol Isobutyl Mercaptan Isobutylmercaptan 2-Methylpropane-1-thiol 1-ISOBUTANETHIOL Isobutanethiol 1-Propanethiol, 2-methyl- 2-methylpropanethiol MFCD00004882 Isobutyl thiol EINECS 208-162-6

Density	0.8±0.1 g/cm3
Boiling Point	86.6±8.0 °C at 760 mmHg
Melting Point	-145°C
Molecular Formula	C₄H₁₀S
Molecular Weight	90.187
Flash Point	-9.4±0.0 °C
Exact Mass	90.050323
PSA	38.80000
LogP	2.13
Vapour density	3.1 (vs air)
Vapour Pressure	74.1±0.2 mmHg at 25°C
Index of Refraction	1.435

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TZ7630000

CHEMICAL NAME :: 1-Propanethiol, 2-methyl-

CAS REGISTRY NUMBER :: 513-44-0

BEILSTEIN REFERENCE NO. :: 1730890

LAST UPDATED :: 199709

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C4-H10-S

MOLECULAR WEIGHT :: 90.20

WISWESSER LINE NOTATION :: SH1Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 19,171,1958 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7168 mg/kg

TOXIC EFFECTS :: Behavioral - muscle weakness Behavioral - ataxia Lungs, Thorax, or Respiration - cyanosis

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 19,171,1958

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 917 mg/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Behavioral - excitement Lungs, Thorax, or Respiration - cyanosis

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 19,171,1958

Symbol	GHS02, GHS07
Signal Word	Danger
Hazard Statements	H225-H315-H319-H335
Precautionary Statements	P210-P261-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	F: Flammable;Xi: Irritant;
Risk Phrases	R11
Safety Phrases	S16-S26-S36
RIDADR	UN 2347 3/PG 2
WGK Germany	3
RTECS	TZ7630000
Packaging Group	II
Hazard Class	3.1
HS Code	2930909090

Precursor 9
78-83-1 1518-72-5 7783-06-4 83962-21-4
83962-24-7 78-77-3 5943-60-2 98-82-8
5943-38-4
DownStream 10
35432-36-1 14100-99-3 592-65-4 115-11-7
1518-72-5 111-65-9 6587-95-7 89647-18-7
42779-10-2 5008-69-5

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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