Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4-Diaminothiophene dihydrochloride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Zhejiang Hangyu API Co., Ltd
China
Product Name: 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE
Price: ￥Inquiry/1kg
Purity: 99.5%
Stocking Period: Inquiry
Contact: Vinnie

90069-81-1

90069-81-1 structure

Name: 3,4-Diaminothiophenedihydrochloride
Chemical Name: 3,4-diaminothiophene dihydrochloride
CAS Number: 90069-81-1
Molecular Formula: C₄H₈Cl₂N₂S
Molecular Weight: 187.091
Catalog: Pharmaceutical intermediate Heterocyclic compound Thiophene compound
Create Date: 2018-05-23 08:00:00
Modify Date: 2024-01-02 12:47:37

Name	3,4-diaminothiophene dihydrochloride
Synonyms	3,4-Diaminothiophene dihydrochloride Thiophene-3,4-diamine dihydrochloride 3,4-Thiophenediamine dihydrochloride 3,4-Thiophenediamine, hydrochloride (1:2) MFCD00671511 3,4-Diaminothiophenedihydrochloride

Boiling Point	385.5ºC at 760 mmHg
Melting Point	>150°C
Molecular Formula	C₄H₈Cl₂N₂S
Molecular Weight	187.091
Exact Mass	185.978531
PSA	80.28000
LogP	3.67890
Storage condition	0-6°C

Symbol	GHS05, GHS06
Signal Word	Danger
Hazard Statements	H301-H317-H318
Precautionary Statements	P280-P301 + P310-P305 + P351 + P338
Hazard Codes	Xn: Harmful;
Risk Phrases	R20/21/22;R39
Safety Phrases	S36/37-S60-S61-S26-S16-S9
RIDADR	UN 1090 3/PG 2
HS Code	2934999090

52431-30-8

~88%

90069-81-1

Literature: Kuraray Co., Ltd.; Kondou, Yoshirou; Nakano, Kirihiro; Otake, Tomiaki Patent: US8519150 B2, 2013 ; Location in patent: Page/Page column 33 ;

19985-45-6

90069-81-1

Literature: Synthesis, , # 12 p. 1124 - 1126

Precursor 2
52431-30-8 19985-45-6
DownStream 3
272-43-5 78637-85-1 78648-59-6

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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