U 19451A

Modify Date: 2025-08-22 18:26:06

U 19451A structure	Common Name	U 19451A
	CAS Number	538-28-3	Molecular Weight	202.704
	Density	N/A	Boiling Point	283.2ºC at 760mmHg
	Molecular Formula	C₈H₁₁ClN₂S	Melting Point	172-177 °C
	MSDS	Chinese USA	Flash Point	125.1ºC
	Symbol	GHS06	Signal Word	Danger

Name	2-Benzyl-2-thiopseudourea hydrochloride
Synonym	More Synonyms

Boiling Point	283.2ºC at 760mmHg
Melting Point	172-177 °C
Molecular Formula	C₈H₁₁ClN₂S
Molecular Weight	202.704
Flash Point	125.1ºC
Exact Mass	202.033142
PSA	75.17000
LogP	3.41530
Water Solubility	250 g/L (15 ºC)

U 19451A MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UM0738000

CHEMICAL NAME :: Pseudourea, 2-benzyl-2-thio-, monohydrochloride

CAS REGISTRY NUMBER :: 538-28-3

LAST UPDATED :: 199701

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C8-H10-N2-S.Cl-H

MOLECULAR WEIGHT :: 202.72

WISWESSER LINE NOTATION :: MUYZS1R &GH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 27 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 27(2),52,1983

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 170 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: URXXAF U.S.S.R. Patent Document. (Gosudarstvennyi Komitet SSSR po Delam Izobretenii i Otkrytii, Malyi Tcherkasski pereulok 2/6, Moscow, Russia). Volume(issue)/page/year: #0822829

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 50 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 80 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report. Volume(issue)/page/year: No.9-4-1-9,1943

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 32 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00167

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H300
Precautionary Statements	P264-P301 + P310
Personal Protective Equipment	Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes	T:Toxic;
Risk Phrases	R25
Safety Phrases	S36/37/39-S45-S28A
RIDADR	UN 2811 6.1/PG 2
WGK Germany	3
RTECS	UM0738000
Packaging Group	II
Hazard Class	6.1
HS Code	29309070

Benzyl bromide

CAS#:100-39-0

thiourea

CAS#:17356-08-0

~92%

U 19451A

CAS#:538-28-3

Literature: Largy, Eric; Liu, Wenbo; Hasan, Abid; Perrin, David M. Chemistry - A European Journal, 2014 , vol. 20, # 6 p. 1495 - 1499

Benzyl alcohol

CAS#:100-51-6

U 19451A

CAS#:538-28-3

Literature: Journal of Pharmaceutical Sciences, , vol. 73, # 3 p. 374 - 377

thiourea

CAS#:17356-08-0

Benzyl alcohol

CAS#:100-51-6

U 19451A

CAS#:538-28-3

Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 6, # 23 p. 2827 - 2830

Benzyl chloride

CAS#:100-44-7

thiourea

CAS#:17356-08-0

~99%

U 19451A

CAS#:538-28-3

Literature: Wenzel, Thomas J.; Zaia, Joseph Analytical Chemistry, 1987 , vol. 59, # 4 p. 562 - 567

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%

S-benzylisothiourea derivatives as small-molecule inhibitors of indoleamine-2,3-dioxygenase.

Bioorg. Med. Chem. Lett. 20 , 5126-9, (2010)

S-benzylisothiourea 3a was discovered by its ability to inhibit indoleamine-2,3-dioxygenase (IDO) in our screening program. Subsequent optimization of the initial hit 3a lead to the identification of ...

Carbamimidothioic acid, phenylmethyl ester, hydrochloride (1:1)

btkh

usafek-2124

Pseudourea, 2-benzyl-2-thio-, monohydrochloride

MFCD00012583

benzylthiouronium chloride

S-Benzylthiopseudourea hydrochloride

2-Benzyl-2-thiopseudourea Hydrochloride

Pseudourea, 2-benzyl-2-thio-, hydrochloride

S-Benzylisothiourea hydrochloride

tl944

2-BENZYL-ISOTHIOUREA

Benzyl thiopseudourea hydrochloride

S-Benzylthiuronium Chloride

Carbamimidothioic Acid Phenylmethyl Ester Monohydrochloride

EINECS 208-688-6

S-(benzyl)isothiourea hydrochloride

U 19451A

SBT

S-benzylisothiouronium hydrochloride

benzyl Isothiourea HCl

benzylthiuroniumchloride

Benzylthiuronium salt

Benzyl carbamimidothioate hydrochloride (1:1)

Pseudourea, 2-thio-2-benzyl-, hydrochloride

2-benzyl-2-thio-pseudourea hydrochloride

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: U 19451A
Price: Check
Purity: 98.5%
Delivery: 10 Day
Contact: Yang
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: U 19451A
Price: ￥598.0/100g ￥218.0/25g
Purity: 98.0%
Delivery: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Benzyl-2-thiopseudourea hydrochloride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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U 19451A

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.