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USA Office
SINCO PHARMACHEM INC.
364 E Main Street Suite 1004 Middletown, DE 19709
Tel：+01 (302) 314 9524
sales@sincopharmachem.com

Strategical Partner:
SHENZHEN PHYSTANDARD BIO-TECH CO., LTD.
3rd Floor D Block QingChuang City Pink Town MinKang Road 292, MinZhi Street, LongHua, ShenZhen, GuangDong, China 518131
Tel: +86 755 8178 9528 Email: info@phystandard.com
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Metformin

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Metformin

Metformin HCl
CAT #: M27965
CAS #: 1115-70-4
M.F .: C4H11N5.HCl
M.W .: 129.17 36.46

Metformin EP Impurity B
CAT #: M27966
CAS #: 4405-08-7
M.F .: C4H8N8
M.W .: 168.16

N,N-Dimethyl Melamine
CAT #: M27967
CAS #: N/A
M.F .: C6H12N8
M.W .: 196.22

Metformin Impurity C
CAT #: M27968
CAS #: 1985-46-2
M.F .: C5H10N6
M.W .: 154.18

Metformin Impurity E (1-Methylbiguanide) Sulfate
CAT #: M27969
CAS #: 36801-25-9
M.F .: C3H9N5. H2O4S
M.W .: 115.14 98.08

Metformin Impurity F
CAT #: M27970
CAS #: N/A
M.F .: C4H12N6
M.W .: 144.18

Metformin Hydroxy Analog 1
CAT #: M27971
CAS #: N/A
M.F .: C2H6N4O
M.W .: 102.10

Metformin Hydroxy Analog 2
CAT #: M27973
CAS #: N/A
M.F .: C4H10N4O
M.W .: 130.15

Metformin EP Impurity B Dinitrate
CAT #: M10323
CAS #: 27369-26-2
M.F : C4H8N8 2×HNO3
M.W : 168.16 2×63.01

Metformin Impurity E HCl
CAT #: M28963
CAS #: 1674-62-0
M.F : C3H9N5 HCl
M.W : 115.14 36.46

Metformin-d6 HCl
CAT #: M60025
CAS #: 1185166-01-1
M.F : C4H5D6N5 HCl
M.W : 135.20 36.46

Metformin Impurity 1
CAT #: M15608
CAS #: 32151-75-0
M.F : C6H12N12
M.W : 252.2

Metformin Impurity 2 Dinitrate
CAT #: M15609
CAS #: 7369-28-4
M.F : C5H10N10 2×HNO3
M.W : 210.20 2×63.01

Metformin Impurity 3 HCl
CAT #: M32463
CAS #: NA
M.F : C2H6N4O HCl
M.W : 102.10 36.46

Metformin Impurity 4
CAT #: M23358
CAS #: 7260-94-8
M.F : C3H7NO2
M.W : 89.09

Metformin EP Impurity A (Cyanoguanidine)
CAT #: M01996
CAS #: 461-58-5
M.F .: C2H4N4
M.W .: 84.08