Table 1.

Custom stable isotope labeling in cell culture media components

Component	Concentration (mg/L)	Catalog number	Vendor
Glycine	30	G5417	Sigma
L-arginine hydrochloride	84	A6969	Sigma
L-cystine 2HCl	62.57	C6727	Sigma
L-histidine hydrochloride-H2O	30	H6034	Sigma
L-isoleucine	42	I7403	Sigma
L-lysine hydrochloride	146.2	L8662	Sigma
L-methionine	30	M5308	Sigma
L-serine	42	S4311	Sigma
L-threonine	95.2	T8441	Sigma
L-tryptophan	16	T8941	Sigma
L-valine	94	V0513	Sigma
L-glutamine	584	G7513	Sigma
L-tyrosine 13C9	103.79	492 868	Sigma
L-leucine 13C6, 15N	104.8	608 068	Sigma
L-asparagine 13C4, 15N2	52.848	641 952	Sigma
L-phenylalanine 13C6, 15N	66	608 017	Sigma
D-glucose	4500	G8270	Sigma